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321. Phil Plait's Bad Astronomy: Bad TV
... Bad Astronomy . ... This kind of telescope, selling for about $100-200, makes a decent starter 'scope, but in general most people would find the view through them disappointing. ... They showed an image of the galaxy which they claimed was taken by the Hubble Space Telescope, even displaying it with the word "Hubble" on it. ... Anyway, a picture taken through a telescope is not what you would see with your own eyes. ... The on-air rep said (and I quote): "Pluto is no problem for this telescope." ...
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Ссылки http://www.badastronomy.com/bad/tv/hsn.html -- 27.3 Кб -- 09.04.2016
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322. Phil Plait's Bad Astronomy: Q and BA
... Bad Astronomy . ... Richard Sanders from Sydney, Australia [Oi!] writes in and asks, "How much of the Milky Way galaxy do we see with the naked eye?" ... Let's go to my model of the Milky Way that I used in episode 1 because, Milky Waste not want not. [ holding up CD model ] The Milky Way is 100,000 light years across, so it takes light 100,000 years to go from one end of the galaxy to another. The Sun is about half way from the center of the galaxy to the edge, so that's about 25,000 light years. ...
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Ссылки http://www.badastronomy.com/qandba/transcript_episode3.html -- 25.4 Кб -- 09.04.2016
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323. Phil Plait's Bad Astronomy: Q and BA
... Bad Astronomy . ... Phil Plait from BadAstronomy.com here. ... Now how do we know this? ... For example, we know that the sun has enough energy inside of it, to heat it up to a surface temperature of about 6,000 degrees Kelvin. ... The answer is about a million years, very roughly. ... We know how much energy the sun gives off every second. And that means we can calculate how much hydrogen is converted into helium in the core of the sun, and we know that's how the sun is generating energy. ...
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Ссылки http://www.badastronomy.com/qandba/transcript_episode2.html -- 25.8 Кб -- 09.04.2016
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324. Phil Plait's Bad Astronomy: Q and BA
... Bad Astronomy . ... I got a lot of questions this week but galaxies really topped the list of topics. ... MaryCCC, Jack Yomens, Mario Ramero, Dan Holland, Michelle Turner, and Joshua C. They asked me what a galaxy is, can I see one using my own telescope, and, I know we live in a galaxy, but how do we know what kind it is? ... If we lived in an elliptical galaxy, we were somewhere, you know, in this big ball of, of stars, everywhere we look in the sky, we'd see stars scattered all around us. ...
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Ссылки http://www.badastronomy.com/qandba/transcript_episode1.html -- 24.4 Кб -- 09.04.2016
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325. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... I always like it when I can mix the Bad and Bitesize astronomy into one topic. ... There is an email circulating the 'net about the full moon that will happen at 17:00 Universal Time December 22 nd of 1999. ... It says that the full moon which occurs on December 22 is also happening when the Moon is at perigee , or closest approach to the Earth. ... This small difference doesn't add up to much change in the brightness of the Moon though.] ...
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Ссылки http://www.badastronomy.com/bitesize/fullmoon_perigee.html -- 24.9 Кб -- 09.04.2016
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326. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Basically, they were being shed in two phases: a slow dense wind, which was shaped like a squashed sphere, and a fast lower density wind, which swept up the slower wind. ... When we got the Hubble images, we were pretty surprised to see a ring of gas around the supernova. ... I have heard people refer to it as ``Plait's star'' which I'll admit is pretty cool. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/sn87a_innerring.html -- 23.3 Кб -- 09.04.2016
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327. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... even the brightest star won't last forever.' ... The pressure and heat are so enormous inside the star's core that hydrogen is fused into helium. ... A star like the Sun has enough hydrogen to keep its fusion fires going for billions of years, but a star like Rigel, a massive star in Orion, burns its hydrogen so fast it may run out in just a few million years. ... The problem is, at this point something bad happens: silicon fuses to iron. ...
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Ссылки http://www.badastronomy.com/bitesize/sn87a_explosion.html -- 25.2 Кб -- 09.04.2016
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328. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Hey, it's either this or one of those really irritating PayPal donation buttons here. ... I have always loved supernovae, stars that explode. ... Late in the evening of February 23 rd /24 th * , 1987, an astronomer named Ian Shelton was taking images of the Large Magellanic Cloud (LMC), a satellite galaxy of the Milky Way. ... Shortly thereafter, Ian Shelton developed the plates he had been taking of the LMC and immediately saw the new star. ...
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Ссылки http://www.badastronomy.com/bitesize/sn87a_discovery.html -- 22.1 Кб -- 09.04.2016
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329. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... I turned back to the Moon, and noticed a red glow to the sky. ... Figuring it was simply a high altitude cirrus cloud illuminated by the just-set Sun, we went back in. I logged on to my computer to check my email, and found one from a woman who had also seen the red glow, and asked me if it were an aurora. ... So when I do see something odd, I'll have to be careful lest I fall the other way, and think every red cloud is an aurora. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/aurora_redcloud.html -- 21.3 Кб -- 09.04.2016
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330. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... I concentrated on the core of the star, because for supernovae that's where the action is. ... I didn't talk much about what those outer layers are doing while the core is going through its evolutionary gyrations. ... It gives off a slow, dense wind of material, like a super solar wind. ... When the star becomes a blue supergiant, the wind becomes much less dense, but may get a boost in speed by a factor of ten. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/sn87a_threering.html -- 23.9 Кб -- 09.04.2016
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331. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... SN87A generates a lot of interest on the web and in the USENET newsgroups, and so much misinformation was being spread about the rings and how they formed that I decided to post a timeline of the supernova, describing what happened at various times during its life. ... Approximately one to five million years ago: A star with about 20 times the mass of the Sun forms from a local patch of gas in the huge Tarantula Nebula gas complex . ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/sn87a_timeline.html -- 25.6 Кб -- 09.04.2016
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332. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... This first Snack of the year 2000 (yes, I am one of those who says the Millennium begins in 2001) will talk a little about a wonderful event: a total lunar eclipse. On the evening of Thursday, January 20 (or the early morning Friday, January 21 if you lives east of England) the Moon will go undergo one of the best eclipses it can. ... The Moon stays in the Earth's shadow in a lunar eclipse longer the Earth stays in the Moon's shadow during a solar eclipse. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/lunar_eclipse.html -- 22.6 Кб -- 09.04.2016
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333. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... If you even glance at the night sky from a dark site, you'll see that stars are not evenly spread out across the heavens. ... When you look up in the sky, it's hard not to see patterns formed by stars. ... We call these patterns of stars ``constellations'', meaning ``groups of stars''. Different people see different shapes, so it's no surprise that different cultures have different names and even boundaries for the constellations. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/constellation.html -- 20.4 Кб -- 09.04.2016
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334. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Last week , I talked about the inner ring around Supernova 1987A, and a little bit about what we learned about it from early Hubble observations. ... No one knows exactly when the bulk of the supernova debris will hit the ring. ... If the fastest moving debris had finally hit the ring, we'd expect to see more of the ring get hit! ... As the debris hits the ring, it will light up once again, and we will once again see the ring in all its glory. ...
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Ссылки http://www.badastronomy.com/bitesize/sn87a_contact.html -- 21.7 Кб -- 09.04.2016
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335. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Hey, it's either this or one of those really irritating PayPal donation buttons here. ... This time, for the next few weeks, I invite you to take a look at the Universe In Motion . ... Every November, the Leonid meteor shower peaks with a typical rate of 20 or so meteors an hour. ... A typical Leonid meteor moves about 100 kilometers per second across our sky, making it one of the fastest moving particles the Earth encounters. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/leonid_kaboom.html -- 21.2 Кб -- 09.04.2016
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336. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Universe Today . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... The only motions we see easily are the rising and setting of the Sun, Moon and stars, but that is a reflection of our own Earth's rotation. ... Usually, these objects are so far away that the distance itself shrinks the apparent motion, the way distant mountains hardly seem to move at all even though you may be driving past them at 100 kilometers an hour. ...
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Ссылки http://www.badastronomy.com/bitesize/hubble_expand.html -- 24.5 Кб -- 09.04.2016
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337. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Public Talks . ... Hey, it's either this or one of those really irritating PayPal donation buttons here. ... Every year or so, astronomers from all over the world submit proposals to try to get observing time aboard the Hubble Space Telescope (HST). ... Getting time on Hubble is hard ! ... This is an ambitious project, and it is done for one reason: to give the public a thanks for letting us astronomers build and use Hubble. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/heritage_vote.html -- 19.8 Кб -- 09.04.2016
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338. Phil Plait's Bad Astronomy: What's New
... What's New? Bad Astronomy . ... News . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . Search the site . ... RELATED SITES . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Archive: 2006 | ... 2000 | 1999 . New Site Additions . June 29, 2006 . I've posted a new movie review! ... April 13, 2006 . Yahoo!News is reporting that a comet fragment will hit the Earth in May, causing "devastating effects". ...
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Ссылки http://www.badastronomy.com/whatsnew/whatsnew2006.html -- 19.2 Кб -- 09.04.2016
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339. Phil Plait's Bad Astronomy: What's New
... What's New? Bad Astronomy . ... News . ... Radio . ... 2005 | ... New Site Additions . ... October 31, 2005 BREAKING NEWS . ... Bottom line: the story is originally from the Weekly World News. 'nuff said. ... So join this new community and talk about science, space, astronomy, skepticism, and the latest news from the ground up! ... May 19, 2005): My Bad Astronomy movie review of . ... I'll be on the Coast to Coast AM radio show tonight at 11:00 p.m. Pacific time to talk about the news alert below. ...
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Ссылки http://www.badastronomy.com/whatsnew/whatsnew2005.html -- 33.4 Кб -- 09.04.2016
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340. Phil Plait's Bad Astronomy: Info
... Bad Astronomy . ... Site Info . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. Hey, it's either this or one of those really irritating PayPal donation buttons here. ... Dr. Philip Plait . Hubble Space Telescope Astronomer . ... His job is to calibrate the Space Telescope Imaging Spectograph , which he refers to as STIS. ... He finds it very exciting to be one of the first people on earth to see what images are coming in from the Hubble Telescope. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/info/studentinterview.html -- 25.0 Кб -- 09.04.2016
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