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          U.S. Naval Research Lab Telescopes Being Used in NASA Solar Probe      Cache   Translate Page      
The U.S. Naval Research Laboratory’s expertise with sun-viewing telescopes is being used in NASA’s Parker Solar Probe mission to better understand how the sun affects our solar system. The ... - Source: www.photonics.com
          An ancient fading ghost of a massive star haunts the night      Cache   Translate Page      

Spitzer Space Telescope spied an ancient supernova remnant among the clouds of massive star formation.


          Das ist die Zukunft: Altair Hypercam 183C PRO TEC (Diskussionen zum Marktgeschehen)      Cache   Translate Page      
Neu im Diskussionen zum Marktgeschehen - Das ist die Zukunft: Altair Hypercam 183C PRO TEC (von apmtelescopes)


          Telescope: Taste of diversity      Cache   Translate Page      
none
          Have you ever viewed the moon through a telescope?      Cache   Translate Page      
Posted by doctorwho1011. 0 people agree, 0 people disagree, (0)
          Segnali da una lontana galassia registrati dall'intelligenza artificiale      Cache   Translate Page      



L'intelligenza artificiale in ascolto dei segnali prodotti dall'universo violento in cerca di quelli che potrebbero avere un'origine artificiale (fonte: Breakthrough Listen image) © Ansa


L'intelligenza artificiale si mette in cerca di Et: è un'idea del programma Breakthrough Listen, nato nell'ambito del progetto Seti per la ricerca sulle intelligenze extraterrestri, e punta ad analizzare in modo più efficiente i segnali radio prodotti dalle grandi esplosioni cosmiche in cerca di anomalie che potrebbero avere un'origine artificiale. Descritto sull'Astrophysical Journal, il progetto è coordinato da Andrew Siemion, direttore del Seti. Il banco di prova del sistema di intelligenza artificiale in ascolto di Et è stata l'analisi dei segnali radio provenienti dalla sorgente chiamata FRB 121102, che si trova in una galassia distante circa 3 miliardi di anni luce dalla Terra.
I lampi radio veloci (fast radio burst, Frb) sono impulsi radio che durano millesimi di secondo, generati in galassie molto lontane e la cui sorgente non è chiara.
I ricercatori si sono concentrati sulla sorgente FRB 121102 perché è molto particolare: è una delle poche a generare questi segnali periodicamente; per la maggior parte li produce solo una volta. Il sistema di intelligenza artificiale ha analizzato i segnali provenienti da questa fonte nell'arco di cinque ore,registrati  il 26 agosto 2017 dal Green Bank Telescope, in West Virginia. Il sistema ha individuato in questo modo 71 nuovi eventi, portando a 300 il numero dei segnali registrati complessivamente da questa fonte dal 2012. Si è visto inoltre che i segnali vengono prodotti in modo irregolare e che la sorgente alterna periodi di quiescenza a periodi di attività frenetica.
Secondo Siemion, l'analisi potrebbe finalmente rivelare l'origine di questi segnali. Anche se si scoprisse che "non sono la firma di una tecnologia extraterrestre, il progetto Breakthrough Listen avrebbe comunque gettato le basi di una nuova area di ricerca" che applica l'intelligenza artificiale alla radioastronomia e "che aiuterà a comprendere l'universo".

Fonte 

 


          Celestron NexStar Evolution 6” Telescope      Cache   Translate Page      
For Sale

For sale by original owner. In pristine condition. About a month old. Used just once to look at a terrestial object so at most the dovetail bar may show sign of very slight use, but that's it. I purchased this scope as a package with its Evolution computerized mount because I wanted just the mount for use with a large binocular. Picture shows its original hang tag is still on it. Includes all stock accessories.

I ship only to the USA.

Please add $20 for shipping. Paypal fee is on me.

300.00
          Skywatcher Virtuosa      Cache   Translate Page      
Wanted

Looking for a used sky watcher virtuosa 90 telescope.

1.00
          totes full for free      Cache   Translate Page      


i have several totes full of telescope parts....eyepiece boxes...a like new lx200 tripod...finders ...all different brands most old.
lots of manuals and other free stuff.....located west michigan.....let me know if you want to come get it.
edit...also a box full of binos.....30 pair at least...a very nice barn door ...eyepieces...truss poles and brackets...new...a box of 1.25 filters....and much more.
come take it all.

0.00
          Sky-Watcher 14” Collapsible Dobsonian      Cache   Translate Page      
For Sale

Up for sale is a Sky-Watcher 14” Collapsible Dobsonian reflecting telescope. It is in excellent condition. Mirrors are flawless. Was purchased a few months ago however they are now discontinued and can no longer get. It is right at the threshold of being reasonably portable yet extremely powerful. Anything larger will most likely require a step ladder and a large truck to transport. Provides excellent views of both DSOs and planets.

Upgrades include Astrozap light shroud, 2” eyepiece holder, three cooling fans for primary mirror and ball bearings for Alt movements.

Local pickup only, will NOT ship. Willing to meet up to 100 miles of Zip code 18324

1400.00
          Review: Visitor in Blackwood Grove:: Everything Board Games Visitor in Blackwood Grove Review      Cache   Translate Page      

by Dt92stang



Quick Look:
Designer: Mary Flanagan, Max Seidman
Artist: Maggie Chiang, Jack Hagley
Publisher: Resonym
Year Published: 2017
No. of Players: 3-6
Ages: 8+
Playing Time: 5-15 min

From the publisher: A spacecraft crashes in Blackwood Grove, and the Kid is the only one watching. Federal Agents hunt down the signal, but no one can get near the craft due to its crushing forcefield. Why can some objects pass through it, but others are repelled? Hiding in the craft, the Visitor hopes the Kid can figure out the rule before the Agents and help it escape. The agents want to dissect the Visitor and keep the ship.

Visitor in Blackwood Grove is an asymmetric, two-versus-many, inductive-reasoning game in which one player — the Visitor — makes up a secret rule like "Things that contain metal" to determine which objects can pass through the forcefield. The other players — the Agents and the Kid — try to figure out the rule by seeing which objects pass through the forcefield and which don't. The Agents secretly test cards from their hands to learn what passes the rule and what doesn't. The Kid tries to predict which cards will pass the rule, and she builds trust with the Visitor if she’s right.

***

As I sat staring at the cards that made it through the Visitor's forcefield, someone at the table said what all the Agents were thinking:


"I can't think of a condition where a horse, meteor, and a pizza would all pass through the forcefield."

The Visitor smirked and offered a shrug. They had done their job and created a pass condition for the forcefield that was a mystery to the agents, but seemingly evident to the Kid.


The Visitor's player card.


The Kid began to boast about how obvious the pass condition was. They may have been bluffing at that point in the round, but the Agents weren't going to have a chance to find out.

The Agents continued the round, secretly sliding their object cards to the visitor for inspection - each of them finding that their objects did not pass through the forcefield until the last one.

The Visitor carefully reviewed the last Agent's card with a picture of a piece of pie and placed it within the forcefield, and as the common thread started to emerge an expression of "Eureka" was shared among the Agents.

Heat. Or at least something related to it.

The Kid announced that they were going to prove the condition and flipped four new cards from the draw deck - a chair, a telescope, fruit, a flag.

"These all fail to pass through." they proclaimed.

And they were right. The Visitor and Kid had won. Heat, specifically things warmer than room temperature, was the secret condition.

As with all the groups I played with, most players at least feigned knowledge of the condition at the end of game.


And as with all the groups I played with, everyone wanted to play again. Roles were changed and cards dealt.

"I can see this being a game we play while we wait for the others to get to the table and start [a heavier title]," said one of the players, and the others nodded in their agreement.

I agree, too.


Based on what made it through the forcefield, can you guess the condition?



Now that you can see what didn't make it through, is it any easier? (Hint: think place in history.)


Going into this review, I had only a vague understanding of the game, but was excited from what I had seen online (which was basically only the theme and most basic of mechanisms). And after several plays, I admittedly was surprised by this game.

I envisioned Visitor as a game that I could play with my family.

And it was. The game is quite image heavy so it made playing with a young child easier than, say, a text-on-card game that required a lot of reading. So no surprise there.

I had also envisioned Visitor as a game that served as a subversive educational tool - a kind of educational Trojan Horse that was disguised as a game. And it definitely does that. Visitor is basically a game of if/then conditional statements. Kids are learning basic coding principles without knowing that's what they're doing. More on this below, but since I had hoped this was the case, the educational benefit wasn't the surprise.

No, what was surprising to me was how much the adults - the groups of self-proclaimed "serious gamers" - enjoyed this game. In every instance that I played with a group of adults, they wanted to play again...and again.


The Kid's turn actions outlined on the player card.


So we would, and as soon as a game would end, roles would change - often based on someone really wanting to play the role of the Kid or Visitor - and cards were dealt.

I was surprised that this game that I picked for review initially because of the educational benefits I foresaw for my children, was quickly cementing itself into the game-between-game choice among my differing gaming groups. But in hindsight, I can see why.

Visitor plays quickly - there were games that lasted less than 5 minutes, most played in around 10 minutes, and none were over 15 minutes.

Visitor can be challenging (or not) - ultimately the game is as challenging as the player playing as the Visitor chooses to make it. If every condition was limited to things that are cold, or something similarly simple, it wouldn't have been received by the adults as well as it wash. But since the Visitor can create their own condition, we had gems like "things that can kill you" and "things that can be used to kill you" - both of which sparked lively conversations upon reveal.

Visitor is a shot of nostalgia - E.T. the Extra-terrestrial, Flight of the Navigator, The Last Starfighter, Lilo & Stitch, Gremlins, Earth to Echo - we've grown up watching kids befriend and/or protect aliens and Visitor allows us to take on that role.

Overall, I liked Visitor for what I thought it was, and for what it turned out to be. It's a light title for sure, but can offer quite a challenge, with a heavy does of nostalgia, in only 5 minutes. It's one that I will play again...and again.

***
For those that have grown accustomed to the usual format, here is a high-level overview, including
critique of the above information and further explanation of rules and game play.

Review:
Rules and Game Play:
I wont go into the step-by-step minutia of the rules (the complete rule book can be found here if you want to read it) but game play can be summarized as one player taking on the role of the Visitor, one player taking on the role as the Kid, and the remaining players playing as Agents. The Visitor secretly creates a condition in which objects will pass through the forcefield. The Kid and Agents test the pass condition by showing a card to the Visitor - the Agents in secret, the Kid publicly - to see what passes through and what is blocked by the forcefield. Once a player thinks they have solved the condition, they select four cards from the top of the draw pile and classify each as pass/fail. If they classify them correctly, they win.


The FBI Agent player card.




Agents test their cards in secret. Objects that would make it through the forcefield are aligned on the edge of the forcefield, while those that would not are placed outside. The Agent's token goes on top of the cards so that they can revisit their cards throughout the game.



Mechanisms:
Partnerships
Pattern Recognition
Press your luck

The Kid's Trust Board. The game gets easier for the Kid as trust builds between the Kid and Visitor.


Artwork and Components:
I liked the art and variance of all the different objects. There are enough cards that you could play several times without seeing the same cards.

The objects cards do not come with any text, so it is up to the eye of the beholder to determine what the object is and whether it would pass the condition. That being said, since there isn't text on the cards, players must rely on the clues in the picture, and for players with color-impairments, this may be a challenge. Especially if the condition is based on a color.


Examples of the object cards.


The components are good quality and will likely hold-up for several plays without issue. The object cards are smaller than a standard playing card and this makes them difficult to shuffle sometimes, but not a deal breaker by any means.

The Good:
There is a lot of good about this game. It can be as challenging, or as easy, as the player playing the role of the Visitor chooses to make it. I played with several different ages, and the game was easily adjusted to each skill level.


Players can use one of the provided condition cards, or create their own.


The game plays quickly, so it is an ideal candidate if you are looking for a quick light game between heavier titles.

Finally, the game is a great subversive learning tool for kids. This game helps in developing critical thinking and laying the ground work for skills necessary for things like coding. I've praised games in the past for their use of pattern recognition, and I'll continue to do so with Visitor. Pattern recognition is a big part of this game and developing pattern recognition in children is shown to boost math comprehension, creativity, memory, and critical thinking skills. So, play Visitor and make your kids smarter.

The Bad:
The only complaint I heard from the players is that the winner didn't necessarily have to know the condition in order to win. There were instances were the player assigned the four cards as pass or fail, got them right, and only then discovered that their solution to the condition was not close to the actual condition as assigned by the Visitor. This only happened a few times, but it was met with some eye-rolls when it did.

Final Thoughts:
I liked Visitor for what I thought it was, and for what it turned out to be. The adults enjoyed as much, if not more, than the kids. I enjoyed the scalability of difficulty, and being able to play the same game in the same way with vastly different age groups and enjoying it with all of them.

I also really like the fact that there is deduction and bluffing, and pattern recognition and a dash of luck all rolled into a potentially 5-minute game. You can find quick games, and you can find good games, but those two don't always overlap. In the case of Visitor in Blackwood Grove it does, and it does it well.

Players Who Like: Quick fillers, deduction games, kid and alien buddy films in pop culture.

See more reviews from Nick and EBG at http://www.everythingboardgames.com/p/reviews.html
          Meade 26mm SP Japan and Celestron Nexstar 25mm Plossl      Cache   Translate Page      
For Sale

So the first plossl is a Celestron Nexstar Plossl 25mm and comes with its original top cap; having come from a 2000 Nexstar 5. These are great performers with multicoated optics and pretty much an equal competitor to the Orion Sirius Plossl line, with the exception that there is no ghosting due to the advanced coatings.
Fit and finish is attractive.

Not a novelty inclusive eyepiece that you see with (for instance) some of the Meade DS-Series refractors of today. This is solid aluminum and brass and is heavy. It is a fantastic all-around low power eyepiece for both anything astronomy and definitely for daytime observing as well. Images in a good telescope will be sharp to the edge. Fov is 50-deg.

Cosmetics are excellent on the chrome, very excellent on the body, and excellent on the optics. No issues to report and definitely no cleaning needed that I can see. $20.00

The second plossl is a Meade 1.25-inch 26mm Super Plossl and comes with its original twist capsule. This is one of the last years of the second generation; Still Japanese-made, but a 4-element rather than a 5.
This eyepiece is a dead-on match to the Celestron Silvertop 26mm with the multicoatings. If you compare the two, many will share the same hues on the coatings.
Me, personally, I'm a pretty darn strict Japanese optics user on all accounts. I have quite a few Japanese refractors, and those use Japanese diagonals and eyepieces, and filters. There are good things that come from Taiwan and China, but as a whole, they cannot compare to the fit, finish, and routine quality control from Japan.
And so this eyepiece, which came as a stock duplicate to my Meade 102ED of the same year, has only given me faultless, crisp low power views of my favorite objects; M57, M31, M42, M13, M92, M35/NGC2158, and we can't forget M94, Jupiter, Saturn, and the Moon.
Lovely, sharp 52-degrees fov to be enjoyed by all ages as this is a VERY easy eyepiece to aim. If you have a 60mm to 80mm refractor that uses a .965" barrel, get a nice hybrid diagonal and put this eyepiece in there and wake up your refractors low power potential to please your eyes!

Cosmetics are very excellent and collectible throughout. No real markings to find and the gloss finish on the aluminum and brass is quite attractive (to me at least!). Optics are very excellent, possibly mint. No dust problems, swirls, coating peel, or fogging. The capsule is in excellent condition and holds firm. $40.00

Prices don't include shipping. Will ship to anyone on the planet.

20.00
          Orion 1995 1.25" Sirius Plossls w caps Taiwan      Cache   Translate Page      
For Sale

I have a lot of respect for this generation of Sirius Plossl from Orion as these are the Taiwan-made models and every darn bit an equal to the Celestron "Halloweens" of the same years. Like the Pro Optic and Celestron versions; all came from the same plant. All came with either a red or black upper body rubber o-ring that releases the top element assembly when the upper barrel is loosened.
And all were fully coated.

Fit and finish on these little guys are great and all will do wonderful work in just about any telescope that I can think of. Each will come with their original top and bottom caps and all have the "Taiwan" decal on the side of the body. This particular set is from the same year; 1995. All give 50-deg fov.

1) 25mm. Excellent condition all around on the cosmetics and hard to find them in conditions above this as beginners were the general 1st owners of them; though they perform well beyond a beginner's ocular! Glass is in great condition on the top element with a hairline in the coating and a few tiny pits. The rest of the elements are excellent and NO dust issues. You will NOT be disappointed with this on M42 later this year. $24.00

2) 17mm. Very excellent on the cosmetics and quite attractive for the collector. Optics are very excellent clean and this is a rare example to find in this condition. Perfect for M13, M92, M15, M57, M11, and M17. Will work with most eyeglass wearers. $30.00

3) 10mm. Very excellent on all the cosmetics and in collector's condition. If only we had the box (sign). Glass is in excellent condition on the top element and the others are very excellent. Again, no dust issues or other contaminants. I very much enjoy this plossl range with a 2x barlow (like the Ultima or Meade apo barlows!) when looking at Jupiter, Venus, Mars, and a lot of double stars. $29.00

Prices don't include shipping. Will ship to anyone anywhere. More photos if ya need 'em!

24.00
          On This Day in Math - September 13      Cache   Translate Page      

Proof is the idol before whom the pure mathematician tortures himself.
~Sir Arthur Eddington


The 256th day of the year; 256 is the smallest composite to composite power,44.

Paul Erdos conjectured that no power of 2 is the sum of distinct powers of three.

from jim wilder @ wilderlab √256 = 2 • 5 + 6

The sum of the cubes of the first 256 odd numbers is a perfect number. \( \sum\limits_{i=0}^{255} (2i+1)^3 = 8589869056\) the 6th perfect number. (all perfect numbers (except 6) are the sum of the cubes of first 2n odd cubes for some (but not all) n) (so \( 28 = 1^3 + 3^3\) and \( 496=1^3 + 3^3 + 5^3 + 7^3\)  ).

256 is the middle number in a run of three successive numbers which are all constructible regular n-gons. 255= 3*5*17, is the product of distinct Fermat Primes, 256=28 and is a power of two, and 257 is a Fermat Prime. *HT to Don S. McDonald ‏@McDONewt


EVENTS

1763 Christopher Irwin’s marine chairs were loaded onto the Princess Louisa to head off to Barbados. Irwin’s chair was being tested alongside Tobias Mayer’s lunar tables and John Harrison’s sea watch.
On 13 September 1763, the log of Lieutenant Patrick Fotheringham records how the ship “Came alongside a Hoy with two Marine Chairs and apparatus for observing the Planet Jupiter in order to finding yet Longde. at Sea the Commissioners for ye Discovery to examine these Machines under ye Direction of Adml. Tyrrell in ye course of his Voyage; Do. came on Bd Mr. Christopher Erwin the Inventor of ye Marine Machine”. *Board of Longitude project, Greenwich

1789 Wm. Herschel writes to Wollaston, "I have found that Saturn has a satellite which has hitherto escaped our observation...".
* buffalolib.org 

Francis Wollaston (23 November 1731, London – 31 October 1815) was an English priest and astronomer.He achieved some distinction as an astronomer, becoming a member of the Royal Society in 1769 and later serving on its council. He also produced a catalog of stars and nebulae in 1789, which was used by many including his friend, William Herschel, about which he comments near the bottom of the letter.

1844 The term ABELIAN INTEGRAL is found in a letter of Sept. 8, 1844, from William Henry Fox Talbot: "What is the definition of an Abelian Integral? for it appears to me that most integrals possess the Abelian property." The letter was addressed to John Frederick William Herschel, who, in his reply of Sept. 13, 1844, wrote: "I suppose the most general definition of an Abelian Integral might be taken to be this that between ∫(x) and ∫(φ(x)) there shall subsist an algebraical relation between several such functions."  As a postscript, he adds that "a very curious photographic novelty occurred to me a day or 2 ago" in which he describes how to use a negative to create a positive image.(Talbot's original contributions included the concept of a negative from which many positive prints can be made (although the terms negative and positive were coined by Herschel), and the use of gallic acid for developing the latent image. [The Talbot letters are available here. ] *Jeff Miller Web site & Wik

1883 Opening of the University of Texas at Austin and Galveston. *VFR

1890 Scientific American carried an article featuring the latest writing technology for the classroom, a slate pen-tip eraser. The device, invented by Mrs Emma Hudson, nestled a piece of sponge inside a rubber casing which could be wetted to remove some, or all, of the marks on a student slate. (The first pencil tip eraser for a lead pencil had been invented in 1858.)


1955 Minor Planet (3167) Babcock 1955 RS. Discovered 1955 September 13 at the Goethe Link Observatory at Brooklyn, Indiana. Named in memory of Harold D. Babcock (1882-1968) and in honor of his son Horace W. Babcock, (on whose birthday it was discovered, see BIRTHS below) astronomers at Mount Wilson Observatory, the latter also serving as director of Palomar Observatory. The elder Babcock's precise laboratory studies of atomic spectra allowed others to identify the first "forbidden" lines in the laboratory and to discover the rare isotopes of oxygen. With C. E. St. John and others, he extended Rowland's tables of the solar spectrum into the ultraviolet and infrared. The Babcocks ruled excellent large gratings, including those used in the coudé spectrographs of the 2.5-m and 5-m telescopes, and they measured the distribution of magnetic fields over the solar surface to unprecedented precision. The younger Babcock invented and built many astronomical instruments, including the solar magnetograph, microphotometers and automatic guiders. By combining his polarization analyzer with the spectrograph he discovered magnetic fields in other stars, and he developed important models of sunspots and their magnetism. (M 15089) Name proposed by F. K. Edmondson. *NSEC

1959 Lunik II hit the moon, being the first man-made object to do so.In 1959, the first space probe to strike the moon was the Soviet Luna 2, which crashed east of the Sea of Serenity. Thirty-six hours after its launch, it was the first man-made object to reach a celestial body. *TIS On September 15, 1959, the premier of the USSR, Nikita Khrushchev, presented to the American president Dwight D. Eisenhower a copy of the spherical pennant (used onboard the Luna 2) as a gift. That sphere is located at the Eisenhower Presidential Library and Museum in Abilene, Kansas.*Wik The actual time of collision was September 13, 1959, 21:02:24 UTC

1983 Osborne Computer declares bankruptcy, two years after producing the first portable computer, the 24-pound Osborne I. Designed by company founder Adam Osborne, the \($1,795\) machine included software worth about \($1,500\). The machine featured a 5-inch display, 64 kilobytes of memory, a modem, and two 5 1/4-inch floppy disk drives.
In April 1981, Byte Magazine Editor-in-Chief Chris Morgan mentioned the Osborne I in an article on Future Trends in Personal Computing. He wrote: I recently had an opportunity to see the Osborne I in action. I was impressed with it's compactness: it will fit under an airplane seat. (Adam Osborne is currently seeking approval from the FAA to operate the unit on board a plane.) One quibble: the screen may be too small for some people's taste.*CHM

2007 Closing date for a prize for a solution to Fermat’s last theorem. Due to inflation the prize of one hundred thousand marks has long been worthless.*VFR (perhaps not completely worthless.) In 1908 The academy of sciences of Gottingen announced a prize of one hundred thousand marks, according to the will of Dr. Paul Wolfskehl, of Darmstadt, for the proof of Fermat’s great theorem. A German industrialist and amateur mathematician, Wolfskehl bequeathed 100,000 marks to the Göttingen Academy of Sciences to be offered as a prize for a complete proof of Fermat's Last Theorem. On 27 June 1908, the Academy published nine rules for awarding the prize. Among other things, these rules required that the proof be published in a peer-reviewed journal; the prize would not be awarded for two years after the publication; and that no prize would be given after 13 September 2007, roughly a century after the competition was begun. Wiles collected the Wolfskehl prize money, then worth $50,000, on 27 June 1997.
Prior to Wiles' proof, thousands of incorrect proofs were submitted to the Wolfskehl committee, amounting to roughly 10 feet (3 meters) of correspondence. In the first year alone (1907–1908), 621 attempted proofs were submitted, although by the 1970s, the rate of submission had decreased to roughly 3–4 attempted proofs per month. According to F. Schlichting, a Wolfskehl reviewer, most of the proofs were based on elementary methods taught in schools, and often submitted by "people with a technical education but a failed career". In the words of mathematical historian Howard Eves, "Fermat's Last Theorem has the peculiar distinction of being the mathematical problem for which the greatest number of incorrect proofs have been published."*Wik



BIRTHS

1873 Constantin Caratheodory born. (13 Sep 1873; 2 Feb 1950) He worked on the calculus of variations and the theory of real functions. He is the only modern Greek mathematician “who does not suffer by comparison with the famous names of Greek antiquity.” *VFR.
German mathematician of Greek origin who made important contributions to the theory of real functions and to the theory of point-set measure. He demonstrated that the calculus of variations (the theory of maxima and minima in curves) could be applied not just to smooth curves, but also those with corners. He also contributed to thermodynamics and helped develop Einstein's special theory of relativity. *TIS

1885 Wilhelm Blaschke  (13 Sep 1885; 17 Mar 1962) German mathematician whose major contributions to geometry concerned kinematics and differential geometry. Kinetic mapping (important later in the axiomatic foundations of various geometries) he both discovered and established it as a tool in kinematics. He also initiated topological differential geometry (the study of invariant differentiable mappings)*TIS

1912 Horace Welcome Babcock (13 Sep 1912; 29 Aug 2003) was a American astronomer, son of Harold Babcock. Working together, they were the first to measure the distribution of magnetic fields over the surface of the Sun. Horace invented and built many astronomical instruments, including a ruling engine which produced excellent diffraction gratings, the solar magnetograph, and microphotometers, automatic guiders, and exposure meters for the 100 and 200-inch telescopes. By combining his polarizing analyzer with the spectrograph he discovered magnetic fields in other stars. He developed important models of sunspots and their magnetism, and was the first to propose adaptive optics.*TIS

1913 Herman Heine Goldstine (September 13, 1913 – June 16, 2004), mathematician, computer scientist and scientific administrator, was one of the original developers of ENIAC, the first of the modern electronic digital computers.*Wik

1920 William Bowen Bonnor (September 13, 1920 - ) is a mathematician and gravitation physicist best known for his research into astrophysics, cosmology and general relativity. For most of his academic career he has been a professor of mathematics at the University of London.*Wik

1923 Peter K Henrici (13 Sept 1923 , 13 March 1987) He made "major contributions to preserving and enriching our mathematical heritage. His books and papers have helped greatly in maintaining numerical analysis as a subject with beauty, order, and structure, in the spirit of the great pioneers of the past. He keeps reminding us to ask what Gauss would have done with a parallel computer - or with a pocket calculator."
"Henrici was truly an internationally recognized numerical analyst, having written 11 books and over 80 research papers. A very cultured person who was also a gifted pianist, he was an outstanding teacher particularly interested in helping younger mathematicians. His lectures showed great polish and inspired many. His guidance and unselfish contributions as an editor have helped make Numerische Mathematik the respected journal it is. For this alone, we owe him a great debt of gratitude." *SAU

1926 Sidney David Drell (born September 13, 1926, Atlantic City) is an American theoretical physicist and arms control expert. He is a professor emeritus at the Stanford Linear Accelerator Center (SLAC) and a senior fellow at Stanford University's Hoover Institution. Drell is a noted contributor in the field of quantum electrodynamics and particle physics. The Drell–Yan process is partially named after him. He was one of the winners of the 2000 Enrico Fermi Award.*Wik



DEATHS

1296 Johannes Campanus (1220 in Novara, Italy - 13 Sept 1296 in Viterbo, Italy) also known as Campanus of Novara, was an Italian mathematician who published a Latin edition of Euclid's Elements. He also wrote on astronomy.*SAU

1940 Myron Mathisson (15 Dec 1897 , 13 Sept 1940) was a Polish Jew known for his work on the equations of motion of bodies in general relativity and for developing a new method to analyze the properties of fundamental solutions of linear hyperbolic differential equations. In particular, he derived the equations for a spinning body moving in a gravitational field and proved, in a special case, the Hadamard conjecture on the class of equations that satisfy the Huygens principle. His work still exerts influence on current research.*Cornell Univ Library


Credits :
*CHM=Computer History Museum
*FFF=Kane, Famous First Facts
*NSEC= NASA Solar Eclipse Calendar
*RMAT= The Renaissance Mathematicus, Thony Christie
*SAU=St Andrews Univ. Math History
*TIA = Today in Astronomy
*TIS= Today in Science History
*VFR = V Frederick Rickey, USMA
*Wik = Wikipedia
*WM = Women of Mathematics, Grinstein & Campbell
          "A Look to the Heavens"      Cache   Translate Page      
“What will become of these galaxies? Spiral galaxies NGC 5426 and NGC 5427 are passing dangerously close to each other, but each is likely to survive this collision. Typically when galaxies collide, a large galaxy eats a much smaller galaxy. In this case, however, the two galaxies are quite similar, each being a sprawling spiral with expansive arms and a compact core. As the galaxies advance over the next tens of millions of years, their component stars are unlikely to collide, although new stars will form in the bunching of gas caused by gravitational tides.
 Click image for larger size.
Close inspection of the above image taken by the 8-meter Gemini-South Telescope in Chile shows a bridge of material momentarily connecting the two giants. Known collectively as Arp 271, the interacting pair spans about 130,000 light years and lies about 90 million light-years away toward the constellation of Virgo. Recent predictions hold that our Milky Way Galaxy will undergo a similar collision with the neighboring Andromeda Galaxy in a few billion years.”
- http://apod.nasa.gov/apod/ap130825.html

          GBO receives $1.3M grant from NSF      Cache   Translate Page      
U.S. Senators Shelley Moore Capito (R-W.Va.) and Joe Manchin (D-W.Va.), members of the Senate Appropriations Committee, announced $1,345,903 for the Green Bank Observatory (GBO) through the National Science Foundation (NSF) and the Associated Universities Inc./National Radio Astronomy Observatory. Funding will support a laser ranging measurement system on the Green Bank Telescope. This will increase the […]
           Exquisite spiral galaxy shines in new ESO image       Cache   Translate Page      

NGC 3981 imaged by the FORS2 instrument mounted on the ESO's Very Large Telescope#source%3Dgooglier%2Ecom#https%3A%2F%2Fgooglier%2Ecom%2Fpage%2F%2F10000

Astronomers have captured a striking view of the galaxy NGC 3981, which is revealed shining with the light of energetic stars, surrounded by its ghostly spiral arms. Located roughly 65 million light-years from Earth, it appears to have been disrupted by a close call with a neighboring galaxy.

.. Continue Reading Exquisite spiral galaxy shines in new ESO image

Category: Space

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          A Galactic Gem      Cache   Translate Page      
ESO’s FORS2 instrument captures stunning details of spiral galaxy NGC 3981. FORS2, an instrument mounted on ESO’s Very Large Telescope, has observed the spiral galaxy NGC 3981 in all its glory. The image was captured as part of the ESO Cosmic Gems Programme, which makes use of the rare occasions when observing conditions are not suitable for gathering scientific data. Instead of sitting idle, the ESO Cosmic Gems Programme allows ESO’s telescopes to be used to capture visually stunning i [...]

           Exquisite spiral galaxy shines in new ESO image       Cache   Translate Page      

NGC 3981 imaged by the FORS2 instrument mounted on the ESO's Very Large Telescope#source%3Dgooglier%2Ecom#https%3A%2F%2Fgooglier%2Ecom%2Fpage%2F%2F10000

Astronomers have captured a striking view of the galaxy NGC 3981, which is revealed shining with the light of energetic stars, surrounded by its ghostly spiral arms. Located roughly 65 million light-years from Earth, it appears to have been disrupted by a close call with a neighboring galaxy.

.. Continue Reading Exquisite spiral galaxy shines in new ESO image

Category: Space

Tags:
          ESO's Very Large Telescope Captures Dazzling Image of Spiral Galaxy (PHOTO)      Cache   Translate Page      
The European Southern Observatory released a mesmerizing image on Wednesday of the spiral galaxy known as NGC 3981, which was initially captured by the observatory's Very Large Telescope in Chile in May.
          [Seti@Home] Hitparade van week 37      Cache   Translate Page      
Replies: 4 Last poster: KuuKe at 13-09-2018 06:11 Topic is Open Astronomen hebben in de dataset van de K2-missie van de Kepler Space Telescope van de NASA twee exoplaneten ontdekt die rond een ster in de open sterrenhoop Praesepe draaien. Het gaat om twee zogenaamde mini-Neptunessen. De nieuw ontdekte exoplaneten dragen de aanduiding EPIC 211964830b en c, beide planeten zijn zogenaamde mini-Neptunessen – gasplaneten die kleiner zijn dan de planeten Uranus en Neptunus in ons eigen zonnestelsel. De binnenste planeet heeft een straal van ongeveer 2,3 * de Aarde en de buitenste planeet heeft een straal van 2,8 * de Aarde. De draaien met een periode van 5,8 respectievelijk 19,7 dagen in een hele nauwe baan om hun ster heen. De ster met de aanduiding EPIC 211964830 is een rode dwerg die een straal en een massa van ongeveer 47% van de Zon heeft. De ster bevindt zich aan de rand van de centrale kern van de open sterrenhoop M44 (ook bekend als NGC 2632 en Praesepe de Kribbe). Dit is een compacte open sterrenhoop bestaande uit ongeveer 1000 sterren. De sterrenhoop is ongeveer 550 lichtjaar van ons verwijderd en is zichtbaar in het sterrenbeeld Kreeft – Cancer. Seti (BOINC) hitparade van woensdag 12 september 2018flushers : 44/1677 (3 %)Users daily#+/-dailynameoverall#1()83.813,87ERBrouwer5.438.297,61(33)2(1)25.876,18[DPC] LooneyTunes82.432.608,55(3)3(1)25.507,93Rather212.896.668,23(50)4()10.197,46gideon9.456.473,64(24)5()9.220,44dpc_kluizenaar15.008.180,21(11)6()6.841,88BetelgeuseFive13.998.097,00(14)7()6.406,48Wolfje66610.815.030,49(20)8(1)5.223,51[DPC]TeamGrazzie27.445.542,14(5)9(6)4.644,25[DPC] hansR230.958.299,78(1)10(2)3.537,92Krovican1.454.706,33(77)11()2.962,41Eddye388.513,49(214)12(6)2.546,15Yobby1.753.586,76(63)13(4)2.153,43HaJong661.282,00(147)14(6)2.086,65John van Oosten3.428.742,54(45)15(4)1.987,20haartsen.nl791.378,71(131)16()1.840,66Dr.Drax11.520.427,40(19)17(31)1.698,85MPG14.690.614,87(13)18(2)1.352,56blow-monkey587.404,96(158)19(2)1.336,92Joost Nooijens852.320,78(127)20(7)1.315,25Ewout296.580,99(258)21(5)1.179,40PinkSand2.370.222,58(56)22(8)1.084,29[DPC]RoyalFlush5.853.749,04(31)23(5)965,89Budha742.473,70(139)24(14)893,23Sir Markus97.643,52(449)25()878,21BladE_99873.700,69(122)26(3)791,36Panzer_V6.574.542,97(29)27(3)774,47Apollo13530.274,18(174)28(2)641,90Inity (Hugo Westerlow)226.917,21(302)29(3)594,57Thorondor745.327,27(138)30()593,75[DPC]nl1klb9.351.971,97(25)More...Users overall#+/-overallnamedaily#1()230.958.299,78[DPC] hansR4.644,25(9)2()115.380.256,12Sp@ceNv@der0,00()3()82.432.608,55[DPC] LooneyTunes25.876,18(2)4()33.369.054,87[DPC]Division_Brabant0,00()5()27.445.542,14[DPC]TeamGrazzie5.223,51(8)6()22.583.463,64[DPC]Div.Delft0,00()7()20.268.156,81F@stmem0,00()8()19.607.039,89searchy0,00()9()16.159.298,19Orion Dark One0,00()10()15.117.777,25Falcon100,00()11()15.008.180,21dpc_kluizenaar9.220,44(5)12()14.902.204,46Ensign Wildfire0,00()13()14.690.614,87MPG1.698,85(17)14()13.998.097,00BetelgeuseFive6.841,88(6)15()13.502.072,38[DPC] Switch0,00()16()12.413.990,68[DPC] Erwin Torsy0,00()17()11.930.490,50cossy0,00()18()11.572.436,67Dr.Drax1.840,66(16)19()11.567.746,85[DPC] BofH0,00()20()10.815.030,49Wolfje6666.406,48(7)21()10.339.164,96lord o25o0,00()22()10.336.625,01apa0,00()23()10.315.943,86MaGNeT0,00()24()9.456.473,64gideon10.197,46(4)25()9.351.971,97[DPC]nl1klb593,75(30)26()8.510.788,97Erik Leensen0,00()27()7.365.959,28schnautzi0,00()28()7.207.218,79Berkie127,44(39)29()6.574.542,97Panzer_V791,36(26)30()5.951.815,73Herby0,00()More...Teams daily#+/-dailynameoverall#1()9.552.635,75GPU Users Group12.923.117.170,65(1)54(11)201.861,71Hungary794.475.167,49(46)55(1)201.535,46Amateur Radio Operators933.736.628,20(38)56(1)201.505,40Overclockers.com1.981.513.419,35(17)57(4)200.307,14STARFLEET - Star Trek Fan Association237.311.043,75(144)58()197.329,66The Scottish Boinc Team450.221.683,30(78)59(8)196.636,52Dutch Power Cows1.043.251.484,01(32)60(2)193.701,56Quebec780.202.368,83(47)61(4)185.677,98U.S. Marine Corps551.751.827,01(63)62(4)183.309,49ZEL / FZ-Juelich292.314.008,04(122)63(3)180.541,11Michigan Tech322.892.945,96(110)64(4)171.889,60BOINC UK416.983.932,45(83)More...Teams overall#+/-overallnamedaily#1()12.923.117.170,65GPU Users Group9.552.635,75(1)27()1.192.920.620,81Ars Technica229.642,48(46)28()1.187.284.158,99UK BOINC Team322.915,56(36)29()1.143.201.532,22BOINC.Italy347.934,94(35)30()1.070.731.650,95Texas A&M University482.741,06(20)31()1.048.216.455,66Team NIPPON419.316,04(29)32()1.043.251.484,01Dutch Power Cows196.636,52(59)33()1.007.596.977,18U.S.Air Force381.468,21(33)34()1.007.197.919,29Team Norway466.487,68(22)35()1.003.982.920,96Carl Sagan426.393,89(27)36()964.088.166,83ngb:setiteam466.171,86(23)37()946.171.412,98Sweden354.081,91(34)More...When do we get themOcUK - Overclockers UK4.165,96Overclockers.com180.961,27BroadbandReports.com Team Starfire4.277.702,49When do they get usTeam Norway114,64Carl Sagan149,25ngb:setiteam203,82U.S.Air Force206,15Sweden644,74Space Quest863,92MVPs1.188,74Australia1.326,36SETI@Home Japan1.832,03SETI Sverige [Sweden]2.219,72BronSeti (BOINC) project site
          This Beautiful Photo of Galaxy NGC 3981 was Taken by the Most Powerful Telescope in the World for no Scientific Reason at all. Just Because it’s Pretty      Cache   Translate Page      

When the ESO's Very Large Telescope can't pursue its science objectives, it spends its time capturing stunning image of fascinating celestial objects.

The post This Beautiful Photo of Galaxy NGC 3981 was Taken by the Most Powerful Telescope in the World for no Scientific Reason at all. Just Because it’s Pretty appeared first on Universe Today.


          TheSkyX and Celestron Scopes      Cache   Translate Page      

Have there been any efforts to interface to the Celestron SkyQ interface for telescope control?  Celestron hand controllers are now coming with micro USB ports for communication.  Not sure how all this factors in, but the serial interface is becoming antiquated, and I would prefer not to run my telescope with an iPad if I can help it in the long run.  Your software package is the most complete all around observatory suite, and I would prefer to stick with it for future expansion.

 

V/r,

Wyatt


          SkyX Serious Astronomer      Cache   Translate Page      

Dear Sir,

I recently purchased the above programme. I am trying to connect my telescope with no success.

I have a Skywatcher NEQ6 Pro mount. When it asks for the mount, there is no Skywatcher mount in the list? Can you please advise how to get connection?

Sincerely,

Stephen MacMahon

My email address is :  stephenmacmahon51@gmail.com


          New licenses on old, unsupported SW versions?      Cache   Translate Page      

Is it possible to buy licenses to old versions of TheSky and CCDSoft? If so, how do I specify them in an order? I am in need of a copy of TheSky 6 and two additional copies of CCDSoft 5, to complete a remote-operation setup on a DFM telescope.


          WEIRD: FBI closes National Solar Observatory over mysterious ‘security issue’      Cache   Translate Page      
UPDATE 9/12/18 4PM PST The issue may be related to Mercury (the metal, not the planet). On a tip from a science journalist friend who covers telescopes and who has been there, I verified the observatory uses a vat of liquid mercury as a float bearing for the giant solar telescope. According to an internal NSO/NMSU document, that bearing is “high-risk” during maintenance. If there was a major mercury spill, it might explain why the Feds are there, with FBI providing security. The amount of Mercury is said to be in the “tens of gallons” range, which is next to...
          Amazon looks to use Chile’s cutting-edge telescopes to datamine the stars      Cache   Translate Page      

E-commerce giant Amazon is in talks with the Chilean government to house and mine huge quantities of star data generated by the country’s state-of-the-art telescopes. Reuters reported that the potential agreement could have benefits for both parties. Chilean President Sebastián Piñera is looking to reduce Chile’s economy on copper mining, of which it is the largest producer in the world. He announced last week that the country plans to pool data from its telescopes onto a virtual observatory stored in the digital cloud, although he did not specify a timeframe for this ambitious project. Currently, 70 percent of money pumped into astronomy…

This story continues at The Next Web

Or just read more coverage about: Amazon

          Dünyanın en neheng teleskopu hazırlandı – FOTO      Cache   Translate Page      
13/09/2018 [09:41]: xeber – Kosmosun tədqiqində Qərblə yarışan Çin 500 metr genişliyə malik “Aperture Spherical Radio Telescope” (FAST) adlı nəhəng teleskop hazırlayıb.Tək diafram aralığına malik bu teleskop Pinqtanqdadır.Dünyanın ən böyüyü olacaq bu teleskopla Çin Porto Rikodakı 305 metrlik “Arecibo” müşahidə evini geridə qoyacaq.“FAST sayəsində kosmosdakı daha zəif və  uzaqdakı radio siqnalını təsbit edə biləcəyik”, – […]
          Amazon looks to use Chile’s cutting-edge telescopes to datamine the stars      Cache   Translate Page      

E-commerce giant Amazon is in talks with the Chilean government to house and mine huge quantities of star data generated by the country’s state-of-the-art telescopes. Reuters reported that the potential agreement could have benefits for both parties. Chilean President Sebastián Piñera is looking to reduce Chile’s economy on copper mining, of which it is the largest producer in the world. He announced last week that the country plans to pool data from its telescopes onto a virtual observatory stored in the digital cloud, although he did not specify a timeframe for this ambitious project. Currently, 70 percent of money pumped into astronomy…

This story continues at The Next Web

Or just read more coverage about: Amazon
          WEIRD: FBI closes National Solar Observatory over mysterious ‘security issue’      Cache   Translate Page      
UPDATE 9/12/18 4PM PST The issue may be related to Mercury (the metal, not the planet). On a tip from a science journalist friend who covers telescopes and who has been there, I verified the observatory uses a vat of liquid mercury as a float bearing for the giant solar telescope. According to an internal NSO/NMSU…
          Amazon looks to use Chile’s cutting-edge telescopes to datamine the stars      Cache   Translate Page      
E-commerce giant Amazon is in talks with the Chilean government to house and mine huge quantities of star data generated by the country’s state-of-the-art telescopes. Reuters reported that the potential agreement could have benefits for both parties. Chilean President Sebastián Piñera ... Reported by The Next Web 2 hours ago.
          Amazon Canada Today’s Deals: Save 52% on PRO Series Refractor Telescope & 35% on National Geographic Ultimate Construction Engineering Set      Cache   Translate Page      

Amazon Canada has awesome deals available now! Today, September 12, 2018, the Amazon Canada deals include: Save 52% on PRO Series Refractor Telescope by Discover with Dr. Cool, today for $119.99, (list price $249.94, save $129.95). Click here to get all Discover with Dr. Cool offers Save 35% on National Geographic Ultimate Construction Engineering Set – Build 100 Unique Motorized Models: Helicopters, Cars, ...Read More

The post Amazon Canada Today’s Deals: Save 52% on PRO Series Refractor Telescope & 35% on National Geographic Ultimate Construction Engineering Set appeared first on Hot Canada Deals.


          WEIRD: FBI closes National Solar Observatory over mysterious ‘security issue’      Cache   Translate Page      
UPDATE 9/12/18 4PM PST The issue may be related to Mercury (the metal, not the planet). On a tip from a science journalist friend who covers telescopes and who has been there, I verified the observatory uses a vat of liquid mercury as a float bearing for the giant solar telescope. According to an internal NSO/NMSU document, that bearing is “high-risk” during maintenance. If there was a major mercury spill, it might explain why the Feds are there, with FBI providing security. The amount of Mercury is said to be in the “tens of gallons” range, which is next to...
          Beam Analysis for the Large Hadron Collider      Cache   Translate Page      
Wire scanners are used in the Large Hadron Collider (LHC) to obtain measurements of the beam profile during low intensity calibration runs. These measurements are used to calibrate Beam Syncrotron Radiation Telescopes (BSRTs) which can be used to obtain beam profiles during high intensity data runs. This paper examines emittance, brightness, and intensity measurements obtained through wire scanner aquisition for calibration fills 6699 and 6913. Wire scanners can also be used to collect beam profile information during the injection phase of normal runs. This paper demonstrates that the data collected by the wire scanner during the normal runs is faulty.
          August 29 to September 5, 2011      Cache   Translate Page      
New giant telescope can search for aliens
          A Galactic Gem      Cache   Translate Page      
FORS2, an instrument mounted on ESO’s Very Large Telescope, has observed the spiral galaxy NGC 3981 in all its glory. The image was captured as part of the ESO Cosmic Gems Programme, which makes use of the rare occasions when observing conditions are not suitable for gathering scientific data. Instead of sitting idle, the ESO Cosmic Gems Programme allows ESO’s telescopes to be used to capture visually stunning images of the southern skies. This wonderful image shows the resplendent spiral
          Saturday, Oct. 20: Astronomy: Phases of the Moon      Cache   Translate Page      
Astronomy: Phases of the Moon: Our Urban Park Rangers will be your guides to the solar system, discussing the science, history and folklore of the universe. Fall and winter are the best times to observe meteor showers, the phases of the moon, and many planets of the Milky Way. Astronomy programs feature the use of telescopes and binoculars to observe astronomical events. Free. 8 pm to 9:30 pm. 50 Kent Pop-Up Park, @@North 11th Street and Franklin Street@@@@@@, (718) 421-2021, https://www.nycgovparks.org/events/2018/10/20/astronomy-phases-of-the-moon

          “Joya cósmica”: Un telescopio en Chile capta una galaxia con un agujero negro supermasivo      Cache   Translate Page      
Por RT La imagen permitió a los astrónomos observar el disco central luminoso de la galaxia, que alberga estrellas jóvenes calientes. El telescopio VLT (Very Large Telescope) del Observatorio Europeo Austral (ESO, por sus siglas en inglés), situado en el desierto Atacama en Chile, ha captado una impresionante imagen de una galaxia espiral, informa este miércoles la […]
          AI program detects dozens of ‘alien’ signals from far-off galaxy      Cache   Translate Page      
Alien hunters say they have detected more unusual radio signals from a galaxy 3 billion light years away with the help of artificial intelligence. Researchers at the Search for Extraterrestrial Intelligence, or SETI, used a machine-learning algorithm to sift through a trove of data collected by West Virginia’s Green Bank Telescope a year ago. The...
          Edmund Scientific Astroscan with 8mm RKE Eyepiece      Cache   Translate Page      
For Sale

Nice condition early 1980's Astroscan, with carrying strap, 8mm RKE eyepiece, 9-page Astroscan brochure, tripod base, and finder sight. Also includes original box that will be used for shipping (not pictured). The primary and secondary mirrors appear to be in excellent condition. The front corrector plate, for an almost 40-year-old telescope, is pretty clean with just minor haze and very minor soiling. Could be easily cleaned, but not necessary. The scope functions fine. Besides testing with the 8mm RKE, I used a 25mm eyepiece and got very nice views of the Moon and a nice star field around Saturn. Great views of star clusters too.
The RKE appears hardly used.

The OTA body has a few scratches on it from the poor design, where the tripod base has a center set screw that, if not fully retracted, can mar the tube as its turned around on the tripod. Looks like someone used it that way mistakenly once and realized the problem. I've tried to provide a picture of the scratching, but it's really not very noticeable, as it's mainly on the lower side of the tube.

Price includes PayPal fees, but not Shipping. Please provide your Zip Code, and I can give a shipping cost. USA only on this item.

179.00
          ESO’s FORS2-instrument legt adembenemende details vast van spiraalstelsel NGC 3981      Cache   Translate Page      
FORS2, een instrument dat aan de Very Large Telescope van ESO is gekoppeld, heeft het spiraalstelsel NGC 3981 in al zijn schoonheid vastgelegd. De foto is gemaakt in het kader van het ESO-programma ‘Cosmic Gems’, dat gebruik maakt van de zeldzame momenten dat de waarnemingsomstandigheden niet geschikt zijn voor het verzamelen van wetenschappelijke gegevens. In […]
          Neu: Massiver L-Halter für Binos o.ä. (Diskussionen zum Marktgeschehen)      Cache   Translate Page      
Neu im Diskussionen zum Marktgeschehen - Neu: Massiver L-Halter für Binos o.ä. (von apmtelescopes)


          APM Image Master Mini Leitrohr 60 mm (Gewerbliche Anzeigen)      Cache   Translate Page      
Neu im Gewerbliche Anzeigen - APM Image Master Mini Leitrohr 60 mm (von apmtelescopes)


          Einladung zum Tag der offenen Tür bei APM (Gewerbliche Anzeigen)      Cache   Translate Page      
Neu im Gewerbliche Anzeigen - Einladung zum Tag der offenen Tür bei APM (von apmtelescopes)


          APM 120 mm 45° SD-Apo Fernglas (Gewerbliche Anzeigen)      Cache   Translate Page      
Neu im Gewerbliche Anzeigen - APM 120 mm 45° SD-Apo Fernglas (von apmtelescopes)


          Dark Sky Watch Evening Thursday September 13h, 2018 ....      Cache   Translate Page      
Escape to Thornhill's own dark-sky oasis and join our avid astronomers with their telescopes for an exciting stargazing evening. When: Thursday, September 13 at 8 p.m, Where: Thornhill Meadow, east of St. Volodymyr's Church,15 Chuuch Lane, Thornhill Rain or cloud date: Thursday, October 11. Contact Jim Laframboise at 905-889-1073.
          Reactie op Very Large Telescope maakt prachtige foto van NGC 3981 door Herman Callens      Cache   Translate Page      
(Alsof het nog niet duizelingwekkend genoeg is …) Dat is nog niets, vergeleken met de (vermoedelijke) doorsnede van het zichtbare heelal nu: zo’n 93 miljard lichtjaar. Als ik er niet naast reken (valt niet uit te sluiten), wil dat zeggen 8,79854E+23, oftewel 879 854 000 000 000 000 000 000 km. Iets leesbaarder: 879 quadriljoen 854 triljard km. Nog minder te bevatten, dus, maar weer peanuts i.v.m. het totale heelal, dus inclusief het niet zichtbare deel. Dat zou ten minste nog 250 keer groter zijn, al zijn er nog veel grotere schattingen. En in die onmetelijkheid zitten wij, ergens op een onooglijk bolletje, ons af te vragen wat het allemaal voorstelt …
          Beam Analysis for the Large Hadron Collider      Cache   Translate Page      
Wire scanners are used in the Large Hadron Collider (LHC) to obtain measurements of the beam profile during low intensity calibration runs. These measurements are used to calibrate Beam Syncrotron Radiation Telescopes (BSRTs) which can be used to obtain beam profiles during high intensity data runs. This paper examines emittance, brightness, and intensity measurements obtained through wire scanner aquisition for calibration fills 6699 and 6913. Wire scanners can also be used to collect beam profile information during the injection phase of normal runs. This paper demonstrates that the data collected by the wire scanner during the normal runs is faulty.
          BUFFALO charges towards the earliest galaxies      Cache   Translate Page      
(ESA/Hubble Information Centre) The NASA/ESA Hubble Space Telescope has started a new mission to shed light on the evolution of the earliest galaxies in the Universe. The BUFFALO survey will observe six massive galaxy clusters and their surroundings. The first observations show the galaxy cluster Abell 370 and a host of magnified, gravitationally lensed galaxies around it.
          QUESTAR 3.5 Reflector Telescope      Cache   Translate Page      
QUESTAR 3.5 Reflector Telescope
BRAND NEW!!!!!!
          QUESTAR 3.5 Reflector Telescope      Cache   Translate Page      
QUESTAR 3.5 Reflector Telescope
BRAND NEW !!!!
          1990's GP-C102 Refractor and Vixen Great Polaris Mount      Cache   Translate Page      
For Sale

I have a late 1990's GP-C102 102 mm diameter, 1000 mm focal length refractor and Vixen Great Polaris mount, both is great condition. This comes with the 6x30 finder, both caps, ota rings, main objective dust cap, and the original 1.25" diagonal with top cap and a 30 mm objective.
The OTA paint is in great shape, with a few very mild scratches, but no tube dents, decals in great shape. The achromatic lens produces pinpoint images and the focuser is nice and smooth. The Super Polaris mount includes polar scope and illuminator projector, tray, slow motion knobs, counterweights, and a beautiful ash wood tripod. This has the standard dovetail plate saddle, so other telescopes mount on to this too. This telescope is very easy to setup for visual use, because it weighs < 17 pounds.

Prefer pick up in Richland, Wa, but delivery may be feasible to Spokane, Eastern Washington, N Idaho areas with gas compensation. Sell price reduced $50 for pickup.

$550 (+ shipping cost if needed)

550.00
          Is mercury release cause ofNew Mexico solar observatory shutdown?      Cache   Translate Page      
Story here. From the link: The issue may be related to Mercury (the metal, not the planet). On a tip from a science journalist friend who covers telescopes and who has been there, I verified the observatory uses a vat of liquid mercury as a float bearing for the giant solar telescope. According to an internal NSO/NMSU document, that bearing
          BUFFALO charges towards the earliest galaxies      Cache   Translate Page      
The NASA/ESA Hubble Space Telescope has started a new mission to shed light on the evolution of the earliest galaxies in the Universe. The BUFFALO survey will observe six massive galaxy clusters and their surroundings. The first observations show the galaxy cluster Abell 370 and a host of magnified, gravitationally lensed galaxies around it.
          Is mercury release cause of New Mexico solar observatory shutdown?      Cache   Translate Page      
Story here. From the link: The issue may be related to Mercury (the metal, not the planet). On a tip from a science journalist friend who covers telescopes and who has been there, I verified the observatory uses a vat of liquid mercury as a float bearing for the giant solar telescope. According to an internal NSO/NMSU document, that bearing
          Casting a $20 Million Mirror for the World’s Largest Telescope      Cache   Translate Page      
Building a mirror for any giant telescope is no simple feat. The sheer size of the glass, the nanometer precision of its curves, its carefully calculated optics, and the adaptive software required to run it make this a task of herculean proportions. The recent castings of the 15-metric ton, off-axis mirrors for the Giant Magellan […]
          #10: Monocular Telescope High Power 8×42 Monoculars Scope Compact Portable Waterproof Fogproof Shockproof with Hand Strap for Adults Kids Bird Watching Hunting Camping Hiking Travling Wildlife Secenery      Cache   Translate Page      
Monocular Telescope High Power 8x42 Monoculars Scope Compact Portable Waterproof Fogproof Shockproof with Hand Strap for Adults Kids Bird Watching Hunting Camping Hiking Travling Wildlife Secenery by FEEMIC 225% Sales Rank in Camera & Photo: 200 (was 651 yesterday) (86) Buy new: $52.99 $29.66 (Visit the Movers & Shakers in Camera & Photo list for authoritative information on this product's current rank.)
          Pet Rock posted a discussion      Cache   Translate Page      
Pet Rock posted a discussion

Mysterious observatory evacuation stirs alien conspiracy theories

Probably terrorist hackershttps://www.cnet.com/news/mysterious-observatory-evacuation-stirs-alien-conspiracy-theories/The Dunn Solar Telescope at the Sunspot solar observatory hides most of itself underground.Amanda Kooser/CNETReports that a Blackhawk helicopter and federal agents swooped in and inexplicably evacuated a remote part of New Mexico, including a prominent solar observatory, has some corners of the internet predictably atwitter about a possible alien coverup. FBI agents showed up at the Sunspot solar observatory in tiny Sunspot, New Mexico, on Friday and shut down the facility, evacuating the local area, including the Sunspot post office. "There was a Blackhawk helicopter, a bunch of people around antennas and work crews on towers, but nobody would tell us anything," Otero County Sheriff Benny House told the Alamogordo Daily News. "I don't know why the FBI would get involved so quick and not tell us anything."Five days later, the observatory's website confirms the entire facility is closed to both staff and the public until further notice. "The Association of Universities for Research in Astronomy (AURA) who manages the facility is addressing a security issue at this time," AURA spokesperson Shari Lifson said in an emailed statement. "It's a temporary evacuation of the facility. We will open it up as soon as possible."8The year's wackiest 'evidence' aliens and UFOs are real (pictures)I have reached out to FBI field offices in Albuquerque and El Paso, Texas, for comment and will update this story when I hear back. Meanwhile, in the vacuum created by the lack of an official explanation, plenty of people on YouTube and social media and tabloid publications have stepped in to suggest their own. Some say the evacuation could be part of a government effort to cover up a discovery involving aliens, an impending solar flare or something else extra-planetary. Others on Reddit and elsewhere think the security issue may involve a foreign power attempting to use the observatory's antennas to spy on nearby White Sands Missile Range. The observatory was originally built by the military in 1947 when it realized the sun could interfere with radio communications. The National Science Foundation ran the facility from the 1960s until this year, when operation was transferred to AURA and New Mexico State University. Hopefully it isn't now in the process of being unwillfully transferred to aliens or foreign spies. We shall see. See More

          Comment on Serena Williams cartoon is evidence of News Corp’s failing culture war by kyle Hargraves      Cache   Translate Page      
I'm unsure as to whether your overlooking your history lessons or your sociology lectures Howard but your cartoon would have necessitated the aborigines possessing similar armament to the British navy prior to making the quite reasonable demands. There is the not insignificant issue as to which aboriginal language would have been demanded of the new immigrants to become acquainted and ditto for the particular tribal customs which possess some variation. Can't make a mess of first impressions can we? Fortunate for all of us that Serena wasn't there to make the situation worse by threatening to stuff the telescope down the throat of the good and gentlemanly Captain.
          Repair Technician      Cache   Translate Page      
CA-Torrance, Repair Technician Celestron is a leading manufacturer of optical telescopes, spotting scopes, and binoculars. We are currently looking for an energetic, motivated, and responsible individual to fill a full-time repair position in our Repair Department. The Telescope Repair Technician performs a full range of maintenance and repair activities on our products. Job Description: Must be able to troubl
          Galaxies from a Long Time Ago and Far, Far Away Star in Amazing Hubble View      Cache   Translate Page      
A remarkable new image from the Hubble Space Telescope captures a close-up view of some of the most distant galaxies in the universe.
          Franck Marchis is connecting amateur astronomers to extraterrestrial researchers      Cache   Translate Page      
franck marchis with telescope

"Seeing color in a nebula from a garden in San Francisco? That's pretty cool."

Marchis has spent his career getting clear pictures of comets, Uranus, and Neptune. Still, he says, "Seeing color in a nebula from a garden in San Francisco? That's…

          土星のオーロラをとらえた動画      Cache   Translate Page      
こちらはハッブル宇宙望遠鏡(Hubble Space Telescope)がとらえた土星(Saturn)の紫外線(Ultraviolet)画像で、特に北極のオーロラ(Aurora)を探求しようとしたものです。太陽系のガス惑星である木星・土星・天王星・海王星の大気は水素からなり、土星のオーロラは紫外線の波長による観測が最も容易な方法です。しかし、宇宙空間からしかとらえられません。土星探査機「カッシーニ(Cassini)」の「Grand Finale」で土星のオーロラ帯も観測しよ..
           Comment on Open Source Telescope Control by macona       Cache   Translate Page      
Same with meade and most other decent controllers.
          NASA Telescope Reveals Seven Earth-Size, Habitable-Zone Planets Around Single Star      Cache   Translate Page      
NASA’s Spitzer Space Telescope has revealed the first known system of seven Earth-size planets around a single star. Three of these planets are firmly located in the habitable zone, the area around the parent star where a rocky planet is most likely to have liquid water. The discovery sets a new record for greatest number […]
          Getting India’s first space telescope working      Cache   Translate Page      
A moment of terror: During the first week of successful operation, there was an initial moment of terror when the engineers checking out Astrosat, India’s first space telescope, thought the spacecraft was unable to point at its target accurately. During the first orbit, there was a difficulty in detecting this Crab Nebula as the satellite happened to pass through the
          India launches its first space observatory      Cache   Translate Page      
The competition heats up: India today successfully launched Astrosat, its first space telescope. ASTROSAT, with a mission life of five years, is armed with telescopes that will simultaneously study the space in visible light, ultraviolet (UV) rays and low- and high-energy X-rays, plus an X-ray scanning sky monitor to detect transient X-ray emissions and γ-ray bursts. The observatory aims to
          ESO Open House Day 2018      Cache   Translate Page      

On Saturday 13 October 2018 between 11:00 and 18:00 CEST, the European Southern Observatory (ESO) will open its doors to the public at its headquarters in Garching bei München, Germany. This event forms part of the Open House Day activities taking place across the whole Garching research campus, when several other research institutes also open their doors to the public. The ESO Supernova Planetarium & Visitor Centre will also be open on the day with its usual programme, which can be found here.

ESO can be found at location number 39 on this map of the campus. Information on how to travel to ESO’s Headquarters in Garching can be found here.

Some of the highlights of the 2018 programme are:

  • See the ESO Headquarters buildings — join guided tours through the innovatively styled office building and the technical building. Learn how ESO creates artificial stars, see what mirror prototypes for the Extremely Large Telescope look like, and much more;
  • Virtual and 3D tours — embark on journeys into and around some of ESO’s most breathtaking sites and groundbreaking instruments;
  • Live connection to Paranal and ALMA — experience a live connection to our telescopes in the Atacama Desert in Chile. Connect to ESO's Very Large Telescope at Paranal and to ALMA, the largest astronomical project in operation, consisting of 66 antennas located 5000 metres above sea level on the Chajnantor Plateau in Chile;
  • Planetarium Shows — experience one of our planetarium shows in the ESO Supernova. (pre-booking required, please see our calendar);
  • ESO Chile Chill — take a moment to relax and watch incredible images from our sites in Chile while listening to a chillout soundtrack;
  • Talks, podcasts and documentaries — listen, watch, and discover more about ESO;
  • Face painting, comet factory, infrared photos, storytelling and gifts for the little ones — children will have lots of fun having their faces painted with many different motifs; they can learn how to build a comet and have their infrared photo taken, search for stamps to fill out their album and receive rewards for their efforts;
  • Solar observations — safely observe the Sun through a special telescope (weather permitting);
  • And much more...

Pre-booking is required for the planetarium shows. For all other activities, there is no need to book in advance. Simply show up for the activities you are interested in. ESO also has a cafeteria where light refreshments will be available.

Media representatives who wish to attend the event are kindly asked to confirm their participation by contacting osandu@partner.eso.org.

More Information

The ESO Supernova Planetarium & Visitor Centre

The ESO Supernova Planetarium & Visitor Centre is a cooperation between the European Southern Observatory (ESO) and the Heidelberg Institute for Theoretical Studies (HITS). The building is a donation from the Klaus Tschira Stiftung (KTS), a German foundation, and ESO runs the facility.


          Galaxies from a Long Time Ago and Far, Far Away Star in Amazing Hubble View      Cache   Translate Page      
A remarkable new image from the Hubble Space Telescope captures a close-up view of some of the most distant galaxies in the universe.
          Hubble goes wide to seek out far-flung galaxies      Cache   Translate Page      
(NASA/Goddard Space Flight Center) A new Hubble observing campaign, called Beyond Ultra-deep Frontier Fields And Legacy Observations (BUFFALO), will boldly expand the space telescope's view into regions that are adjacent to huge galaxy clusters previously photographed by NASA's Spitzer and Hubble space telescopes under a program called Frontier Fields.
          The National Solar Observatory at Sunspot, NM, was closed by the FBI for 'security reasons'      Cache   Translate Page      

On September 7, the Alamogordo Daily News reported that the National Solar Observatory in Sunspot, New Mexico, had been evacuated and “temporarily closed due to a security issue at the facility.” The facility, which is operated by a consortium of universities, is perched at an altitude of 9,800’ and is home to the Richard B. Dunn Solar Telescope. It generates high resolution images of the sun, and also acts as a testbed for new technologies being used by other solar telescopes. At this point, the facility remains closed to both the public and employees, without a stated reason.

The idea that an observatory might be closed for “a security issue” seems odd on the face of it. That strangeness has been amplified by the refusal of those associated to provide details of the concern or to announce any plans to reopen the facility. But the security issue here does not appear to be a problem with someone swiping lab supplies or getting into the facility on off hours. Because it is definitely not being handled by the staff.

“The FBI is refusing to tell us what’s going on,” [Otero County Sheriff Benny House] said. “We’ve got people up there (at Sunspot) that requested us to standby while they evacuate it. Nobody would really elaborate on any of the circumstances as to why. The FBI were up there. What their purpose was nobody will say.”

Initial speculation suggested that someone may have made a threat against the facility or against one of the employees there. Others have suggested that the isolated location may have led to some part of the property being used for drugs or smuggling. 

But with the sheriff reporting that agents arrived in Blackhawk helicopters to evacuate the entire mountain, and the reluctance to give any reason the action, it’s no surprise that many have started to peak around for signs of Mulder and Scully. Just what could have happened at Sunspot to bring down the genuine black helicopter crowd?

It’s never aliens. Until it’s aliens. So is it aliens?


          Galaxies from a Long Time Ago and Far, Far Away Star in Amazing Hubble View      Cache   Translate Page      
A remarkable new image from the Hubble Space Telescope captures a close-up view of some of the most distant galaxies in the universe.
          Galaxies from a Long Time Ago and Far, Far Away Star in Amazing Hubble View      Cache   Translate Page      
A remarkable new image from the Hubble Space Telescope captures a close-up view of some of the most distant galaxies in the universe.
          Sr Hardware Engineer -Analogue - Honeywell - Ottawa, ON      Cache   Translate Page      
Honeywell Aerospace creates advanced, specialized UV/optical/infrared instrumentation, such as the Fine Guidance Sensor for the James Webb Space Telescope, the...
From Honeywell - Fri, 29 Jun 2018 14:57:30 GMT - View all Ottawa, ON jobs
          Hubble Goes Wide to Seek Out Far-Flung Galaxies      Cache   Translate Page      

The universe is a big place. The Hubble Space Telescope's views burrow deep into space and time, but cover an area a fraction the angular size of the full Moon. The challenge is that these "core samples" of the sky may not fully represent the universe at large. This dilemma for cosmologists is called cosmic variance. By expanding the survey area, such uncertainties in the structure of the universe can be reduced.

A new Hubble observing campaign, called Beyond Ultra-deep Frontier Fields And Legacy Observations (BUFFALO), will boldly expand the space telescope's view into regions that are adjacent to huge galaxy clusters previously photographed by NASA's Spitzer and Hubble space telescopes under a program called Frontier Fields.

The six massive clusters were used as "natural telescopes," to look for amplified images of galaxies and supernovas that are so distant and faint that they could not be photographed by Hubble without the boost of light caused by a phenomenon called gravitational lensing. The clusters' large masses, mainly composed of dark matter, magnify and distort the light coming from distant background galaxies that otherwise could not be detected. The BUFFALO program is designed to identify galaxies in their earliest stages of formation, less than 800 million years after the big bang.


          20% OFF for 16X50 Single-tube Monocular Telescope (15.87€ or 19.05$)      Cache   Translate Page      

You need to use promocode.

The post 20% OFF for 16X50 Single-tube Monocular Telescope (15.87€ or 19.05$) appeared first on Сайт бесплатных купонов и промокодов.


          Hubble peers into a galaxy's dusty haze      Cache   Translate Page      
This NASA/ESA Hubble Space Telescope image showcases the galaxy NGC 4036, a lenticular galaxy some 70 million light-years away in the constellation of Ursa Major (the Great Bear). NGC 4036 [Credit: ESA/Hubble & NASA; Acknowledgment: Judy Schmidt]This galaxy is known for its irregular lanes of dust, which form a swirling spiral pattern around the center of the galaxy. This core is surrounded by an extended, hazy aura of gas and...

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          Galaxies from a Long Time Ago and Far, Far Away Star in Amazing Hubble View      Cache   Translate Page      
A remarkable new image from the Hubble Space Telescope captures a close-up view of some of the most distant galaxies in the universe.
          Hubble Captures Image of a Truly Warped 'Dragon'       Cache   Translate Page      

An ambitious use of the Hubble Space Telescope hopes to map some of the biggest, brightest, and furthest galaxies to understand the structure of our universe. Above is a picture from that survey, featuring a strange, warped feature called the Dragon.

Read more...


          Hubble Captures Image of a Truly Warped 'Dragon'       Cache   Translate Page      

An ambitious use of the Hubble Space Telescope hopes to map some of the biggest, brightest, and furthest galaxies to understand the structure of our universe. Above is a picture from that survey, featuring a strange, warped feature called the Dragon.

Read more...




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