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361. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... So I'll ask a question of you, O Bitesized Reader: where and how big is the largest impact crater in the solar system? ... While looking up some info for a potential Bad Astronomy page , I stumbled across an image of the Moon on the wonderful Astronomy Picture of the Day Site . ... That distinction goes to the crater Herschel, on Saturn's moon Mimas. 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! ...
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Ссылки http://www.badastronomy.com/bitesize/big_crater.html -- 18.7 Кб -- 09.04.2016
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362. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Site Info . ... There was an interesting discussion recently on the USENET bulletin boards about the sizes of stars. ... Sometimes, though, it does look like the stars have some sort of width to them, but this is not because the stars are big, but instead because the Earth's atmosphere distorts the stars' images. Tiny cells of air in the Earth's atmosphere are constantly dancing about, and they act like tiny lenses, bending the stars' light. ...
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Ссылки http://www.badastronomy.com/bitesize/betelgeuse.html -- 20.1 Кб -- 09.04.2016
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363. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... When you ask for free advice you usually get what you pay for. ... I was also recently asked if there are any online lists of astronomy clubs that can be found. ... Another excellent page is the Finding an Amateur Astronomy Club FAQ , which itself lists several more pages that will help you find a local group of astronomers. ... 2008 Phil Plait....
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Ссылки http://www.badastronomy.com/bitesize/astroclubs.html -- 20.1 Кб -- 09.04.2016
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364. Phil Plait's Bad Astronomy: Bitesize Astronomy
... What's New? Bad Astronomy . ... Bitesize Astronomy . ... Site Info . ... Week of June 7, 1999 This was a big week for astronomy news! ... The held it in Chicago, and this year unfortunately I could not attend (my grant travel funds were used up last year for a meeting in the Canary Islands, isn't that just too bad? ... First, the Space Telescope Imaging Spectrograph was used to make images of a young star that is still wrapped in the disk of material from which it formed. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/aas_pr1999.html -- 22.5 Кб -- 09.04.2016
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365. Phil Plait's Bad Astronomy: Privacy Policy
... Bad Astronomy . ... Media . ... Bitesize Astronomy . ... Site Info . ... Privacy Policy . ... This website serves ads delivered by Burst Media. What follows is the privacy policy. ... With our involvement in this organization we are going to need your help, moving forward the NAI has asked that all Publisher that are part of Burst Media add the following text to their privacy policy: . We use third-party advertising companies to serve ads when you visit our Web site. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/info/privacypolicy.html -- 19.1 Кб -- 09.04.2016
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366. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... So far in our hop from cluster to cluster we've seen associations , then constellations , and then our first truly bound group of open clusters . ... Some open clusters have tens of thousands of stars, but a decent globular cluster has over a million. ... Our Milky Way galaxy sports about 100 globulars that we have detected. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/globulars.html -- 19.7 Кб -- 09.04.2016
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367. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... I was hoping the blue tinting would filter the Sun's light enough so that I could concentrate better on the road. The Sun was getting pretty low, and was already fairly red, as it does near sunset. I was surprised, then, when I finally got the Sun behind the blue tint and suddenly the Sun looked yellow! ... However, the blue tinting in my windshield blocks red more the yellow, so it let the yellow through while stopping the red. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/sunfilter.html -- 20.5 Кб -- 09.04.2016
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368. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Mad Science . ... Week of September 13, 1999 . ... In 1975, a new science fiction series aired its first episode: ``Space: 1999''. ... For Some Unknown Reason (a plot device used over and over in the show) the nuclear dump built up a huge magnetic field, which exploded, hurtling the Moon out of Earth's orbit. ... Space:1999'' was bad, sure, but it did something I still appreciate: it helped me along my way of loving space even more. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/space1999.html -- 20.5 Кб -- 09.04.2016
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369. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Regular readers know that I have this thing for asteroids. ... But asteroids are inherently interesting: we've known they've existed since 1801, when Ceres was discovered, yet we only have a handful of good images of them, and in many cases we can only guess at their masses. ... For the record: Ceres masses about 8.7 x 10^20 kilograms Pallas is 3.18 x 10^20 kilograms and Vesta is 3.0 x 10^20 kilograms. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/rockheavy.html -- 19.3 Кб -- 09.04.2016
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370. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... At first glance, the asteroid 433 Eros might seem just like every other asteroid. ... But Eros was the first of what later became a sizable class of what we call ``Near Earth Asteroids'', or NEAs for short. ... At 10:33 a.m. Eastern US time, the Near Earth Asteroid Rendezvous, or NEAR, went into orbit around Eros. ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! ...
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Ссылки http://www.badastronomy.com/bitesize/near_eros.html -- 20.9 Кб -- 09.04.2016
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371. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Search the site . ... Dr. Lou Frank, of the University of Iowa, claimed years ago that he had detected the evidence that many mini-comets were impacting the Earth's upper atmosphere every day. ... One of the things I love about science and astronomy-- as scientists, we demand proof of extraordinary claims. ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...
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Ссылки http://www.badastronomy.com/bitesize/minicomet.html -- 19.2 Кб -- 09.04.2016
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372. Phil Plait's Bad Astronomy: Bitesize Astronomy
... What's New? Bad Astronomy . ... Bitesize Astronomy . ... Hey, it's either this or one of those really irritating PayPal donation buttons here. ... There's more stuff going on out there in the world and beyond than we know about, and sometimes we don't even know enough to ask the right questions. ... Or at least, we know what questions to ask? ... These new telescopes may indeed answer all the questions we have now , but what questions do we not know that we don't even know? 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/knowledge.html -- 20.5 Кб -- 09.04.2016
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373. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Someone on the USENET newsgroup sci.astro.amateur suggested that people with 'scopes take them out that night, so that the neighborhood kids could get a chance to see the Moon and Jupiter when they were out anyway trick-or-treating. ... But remember, Galileo discovered the four big moons of Jupiter with what was really a pretty bad 'scope. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/halloween.html -- 20.1 Кб -- 09.04.2016
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374. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Another is that a ship sailing away will appear to slip below the horizon, because it is going around the curvature of the Earth. ... This is equal to about 1/30 of the way around the Earth, or 12 degrees. ... Last year I could clearly see Canopus (the second brightest nighttime star in the sky) to the South, but it never gets high enough to see from my house. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/flatearth.html -- 20.1 Кб -- 09.04.2016
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375. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Sometimes whole galaxies can be hidden away from us, yet so close we could practically stub our toes on them. ... Now look around: you can clearly see people a few meters away, fuzzily see them 10 meters away, and only barely see them 50 meters away. ... We have detectors that can see colors of light our eyes cannot, like ultraviolet, infrared (also known as IR) and radio waves. ...
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Ссылки http://www.badastronomy.com/bitesize/dwingeloo.html -- 21.5 Кб -- 09.04.2016
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376. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... For many things in life, what you see is what you get (on the 'net, that term is usually abbreviated WYSIWYG, and is pronounced "whizzy wig"). ... Our eye is amazingly sensitive to light, and has a huge range of light it can detect: the brightest astronomical object on the sky we can safely see is the full Moon, which is about 40 million times brighter than the faintest star you can see! ... The retina is the light sensitive tissue in the back of the eye....
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Ссылки http://www.badastronomy.com/bitesize/blindspot.html -- 19.4 Кб -- 09.04.2016
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377. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... A tidbit of news on the brown dwarf front came in this week. Regular readers may remember that brown dwarfs are objects that are intermediate in mass between a planet and a star . ... So this is even better evidence that brown dwarfs form like stars and not planets. Brown dwarfs may not turn out to be the 'missing link' between planets and stars the way some astronomers thought a few years ago, but they are providing clues on just how stars and planets do form. ...
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Ссылки http://www.badastronomy.com/bitesize/bd_binary.html -- 20.2 Кб -- 09.04.2016
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378. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Another method is to take very fast exposures of an object; in effect taking images faster than the seeing can blur the image. ... A third, relatively new method, is to try to detect just how the seeing is affecting the image, and actually warp the telescope mirror to compensate. ... The advantage of the second method is that it's easier to make many small mirrors than one big one. ...
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Ссылки http://www.badastronomy.com/bitesize/adaptive.html -- 22.3 Кб -- 09.04.2016
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379. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... We've come a long way from cluster to cluster! ... Some of these objects turned out to be star clusters of various types, and other were true nebulae, or clouds of glowing gas. ... Therefore, by their reasoning, these spiral nebulae must be part of our own Milky Way. ... An established and respected astronomer, Heber Curtis, defended the idea that the nebulae were ``island universes'', clusters of stars and gas in their own right like the Milky Way. ...
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Ссылки http://www.badastronomy.com/bitesize/galaxies.html -- 20.7 Кб -- 09.04.2016
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380. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... A few months ago, I wrote about how we know the Earth is round . ... As the Earth rotates, different parts of it face the Sun. ... A funny thing happens if you move west across a single time zone: the Sun will set at a different time at different locations! ... The Earth is a rotating ball, and people that live on different longitudes see the sun set at different times. ...
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Ссылки http://www.badastronomy.com/bitesize/timezone.html -- 21.1 Кб -- 09.04.2016
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