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441. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... For example, a circle is divided into 360 degrees, with each degree further divided into 60 arcminutes, and each arcminute divided into 60 arcseconds (so there are 3600 arcseconds in a degree). ... The sky is 360 degrees around. But the sky has area! Area is measured in square units, like a floor area is measured in square meters. How many square degrees are there in the sky? ... There are over 40 thousand square degrees in the sky. ...
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Ссылки http://www.badastronomy.com/bitesize/bigsky.html -- 19.1 Кб -- 09.04.2016
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442. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Life Under the Moon . ... Seeing Jupiter's Moons . ... Time Zones and the Spherical Earth . A Companion to the Earth? ... December 19, 1999) . ... Big Moon, Little Moon . ... How Big is the Moon? ... 14, 2000) . ... 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/pantry.html -- 27.8 Кб -- 09.04.2016
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443. 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 make it a habit to check the Heavens Above Satellite Visibility page every Monday to see if there are any interesting satellites that will be passing overhead that week. ... Funny; one of the reasons I started the Bad Astronomy pages is that most people don't realize that astronomy is real , you can go out for yourself and see a lot of it. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/zarya.html -- 20.2 Кб -- 09.04.2016
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444. Phil Plait's Bad Astronomy: Bitesize Astronomy
... What's New? Bad Astronomy . ... Bitesize Astronomy . ... Site Info . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... We take so much for granted. Every second of every day, the Sun puts out more energy than every means of energy production the human race has ever designed. Yet how much does the average person really know about the Sun? ... 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/trace.html -- 19.0 Кб -- 09.04.2016
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445. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... It is from from Voyager 1 and shows a whopping big impact crater dominating the profile of the moon. Note that Mimas is about 400 kilometers across (about 250 miles). ... The wall around the crater is 5 kilometers high, and that central peak rises 6 kilometers above the surface (many impact craters have a large central peak which is caused by a pressure rebound from the impact). ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/mimas.html -- 19.9 Кб -- 09.04.2016
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446. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... I had to lean backwards a little to make sure we didn't topple over, and as I spun her in a big circle around me I made a little circle on the floor too. ... The Earth, for example, has a mass about 81 times that of the Moon. ... It is mathematically correct to say that it is the barycenter that orbits the Sun, while the Earth and Moon circle the barycenter. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/dance.html -- 20.6 Кб -- 09.04.2016
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447. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... The Nine Planets . ... 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. ... Basically what is happening is that many planets are located in the same general area of the sky. Most obvious is Venus, high in the southwest sky after dark. ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! ...
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Ссылки http://www.badastronomy.com/bitesize/align.html -- 19.0 Кб -- 09.04.2016
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448. 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. ... If the Universe is flat, it is forever balanced between open and closed; it will expand forever, but always slowing, just balancing gravity. ... Basically, if the Universe is open (will expand forever), closed (will eventually contract again) or flat (expanding just fast enough to balance gravity), you will see differences in the way the SN behave. ...
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Ссылки http://www.badastronomy.com/bitesize/accel.html -- 21.4 Кб -- 09.04.2016
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449. Phil Plait's Bad Astronomy: Bitesize Astronomy
Blog . ... Bad Astronomy . ... Bulletin Board . ... 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. ... Don't forget too you can talk about astronomy to other space-junkies on the Bad Astronomy Bulletin Board . Phil Plait, aka The Bad Astronomer . ... 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/index.html -- 18.0 Кб -- 09.04.2016
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450. Phil Plait's Bad Astronomy: Bitesize Astronomy
... What's New? Bad Astronomy . ... News . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Week of May 24, 1999 If you've spent a few minutes going through some older Snacks , you'll see that I like using the Hubble Space Telescope (HST). Outfitted with many different types of cameras, HST has capabilities that allow it to view the heavens in ultraviolet, optical and infrared light. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/wfc3.html -- 21.1 Кб -- 09.04.2016
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451. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Media . ... Bitesize Astronomy . ... Mad Science . ... It started with the official announcement, emailed to me without comment by a fellow astronomer, that an asteroid named 1997 XF11 would pass some 40,000 or so kilometers away from the Earth in the year 2028. ... I knew right away that the media would take advantage of this (little did I know that the Family Channel was about to re-air their wretched piece of Bad Astronomy called Doomsday Rock again). ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/xf11.html -- 23.9 Кб -- 09.04.2016
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452. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Radio . ... Bitesize Astronomy . ... Think of a telescope as a bucket that collects light. ... So over the years, telescope makers have focused on making telescopes bigger and bigger. ... For radio telescopes, however, the size limit is much bigger. Many astronomical objects emit radio waves, and as it happens telescopes built to detect radio don't have the same stringent smoothness criteria optical telescopes do. ... But radio telescopes can get even bigger. ...
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Ссылки http://www.badastronomy.com/bitesize/vlbi.html -- 21.5 Кб -- 09.04.2016
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453. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... The Nine Planets . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... The large blob near the top of the image is actually two stars orbiting one another. ... The interest has been generated by the point-like object below the binary stars. ... As theory goes, it is possible that planets around binary stars (or even systems with more than two stars) can be ejected from the system, literally thrown off to wander through space. ...
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Ссылки http://www.badastronomy.com/bitesize/tmr1.html -- 20.0 Кб -- 09.04.2016
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454. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... The Solar and Heliospheric Observatory (SOHO) was launched December 2, 1995, and has been continuously observing the Sun ever since. ... On June 2, 1998, it spotted not one but two comets very near the solar surface. ... The image above is a small version of a single frame from a movie you can download yourself from the SOHO web page . ... One thing SOHO studies are huge eruptions from the Sun called "Coronal Mass Ejections". ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/soho.html -- 19.1 Кб -- 09.04.2016
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455. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... When I was a kid-- heck, when I was in graduate school -- asteroids weren't much more than a spot of light on a photograph. ... But the Near-Earth Asteroid Rendezvous (NEAR) spacecraft was . ... To whet our appetite, though, NEAR flew past the asteroid Mathilde on June 27. ... Dr. Lucy McFadden has a page that describes Mathilde, which is where I got the image comparing the...
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Ссылки http://www.badastronomy.com/bitesize/near.html -- 19.7 Кб -- 09.04.2016
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456. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... As the boiling water poured over my hands, I had a few milliseconds to ponder over the difference between temperature and heat. ... What we think of as temperature in our daily lives is really a measure of the energy packed into a given amount of material. ... That's because water is denser than air, and is very efficient at transferring the energy it possesses to your body. ...
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Ссылки http://www.badastronomy.com/bitesize/heat.html -- 19.4 Кб -- 09.04.2016
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457. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Site Info . ... Sometimes they start faint and get brighter (as they get nearer they get brighter), sometimes the brightness oscillates (if the satellite tumbles in orbit), and sometimes you can get a very bright flash off of a reflective surface on the satellite. ... When you are finished, you will be sent to a page that gives you options on what kind of satellites to look for: very bright ones, faint ones, just the Mir , etc. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/gsoc.html -- 19.2 Кб -- 09.04.2016
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458. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Dust has been on my mind lately. ... It made me realize: dust affects every aspect of astronomy. ... It's not the kind of dust you see around here on Earth. ... This has been known for a long time; you cen see it for yourself on a dark, cloudless night. Look for the Milky Way, the faint patch of light that is actually the glow from all the stars in our Galaxy. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/dust.html -- 22.8 Кб -- 09.04.2016
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459. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Dubbed simply "3753", it orbits the Sun at almost the same distance as the Earth does. ... So imagine 3753 is in an orbit just smaller than the Earth. ... Since the Earth has given the tiny asteroid extra energy, the asteroid actually moves farther out from the Sun. ... Since asteroid 3753 is in a larger orbit, it slows down, and is now moving slower than the Earth. ...
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Ссылки http://www.badastronomy.com/bitesize/3753.html -- 20.0 Кб -- 09.04.2016
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460. Phil Plait's Bad Astronomy: Calendar of Events
Blog . ... Bad Astronomy . ... Bitesize Astronomy . Book Store . Bad Astro Store . ... Site Info . Search the site . ... Calendar/Events . ... 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. This calendar lists either events with which I am taking part or astronomical events you can see for yourself. ... 2008 Phil Plait. ... Check out my book "Bad Astronomy" . ...
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Ссылки http://www.badastronomy.com/info/calendar.html -- 18.3 Кб -- 09.04.2016
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