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1. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...
[ Сохраненная копия ]  Ссылки http://www.badastronomy.com/bitesize/jetplane.html -- 21.9 Кб -- 09.04.2016
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2. Hale-Bopp Brightest Comet This Century
... 25.03.1997 . ... Credit: Angel Sanchez ( AAGC ) Explanation: A comet as bright as Comet Hale-Bopp is very rare indeed. ... However, since Comet Hale-Bopp is across the inner Solar System from us, it does not appear as bright as Comet West did in 1975. The Great Comet of 1996, Comet Hyakutake , was relatively dim but also appeared bright since it passed close to the Earth. ... Publications with keywords: century - Comet Hale-Bopp . Publications with words: century - Comet Hale-Bopp . ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/msg/1163423 -- 13.8 Кб -- 22.06.2003
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3. ASP: Monster Comet Promises Big Show
... The awsome spectacle of a brilliant comet, with its long ghostly tail streaming behind it, is a rare event. ... Only one other comet, Comet Halley, was seen so far from the Sun, giving scientists an opportunity to watch it as it slowly warmed up and sprouted a tail. ... Comets are the Rip Van Winkles of the solar system -- mini-worlds that have changed little during their 4.5-billion-year nap far from the Sun. ... Observing Comets . ... Once, comets inhabited the entire solar system. ...
[ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/36/36.html -- 12.1 Кб -- 02.10.2012
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4. Armagh Observatory
... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . See also images taken on November 22nd . Image taken by Andy McCrea who says, . To me the comet appears yellowish and it has gone from star-like to a . ... More images from Andy McCrea here . ... The true explanation is that a very faint comet, known as periodic comet Holmes, produced a massive outburst of material and became a million times brighter than it was just a day earlier. ... More images from Andy McCrea . ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/press/2007/cometholmes/ -- 9.9 Кб -- 10.10.2012
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5. First X-Rays From a Comet Discovered
A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/solar/eng/hyakutak.htm -- 5.3 Кб -- 15.10.1997
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6. APOD: 2015 June 2 - Polaris and Comet Lovejoy
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2015 June 2 . Polaris and Comet Lovejoy . ... Explanation: One of these two bright sky objects is moving. On the right is the famous star Polaris. Although only the 45th brightest star in the sky, Polaris is famous for appearing stationary. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/ap150602.html -- 5.8 Кб -- 10.04.2016
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7. Supernovae 2010jl in UGC 5189A
Supernovae 2010jl in UGC 5189A . This page is devoted to information on Supernova 2010jl in UGC 5189A . ... Astronomy Magazine's Supernova SN 2010jl . ... Bad Astronomy's SN 2010 JL in weird UGC 5189 . SpaceBanter.com 2010jl post . Blogbaker's 2010jl post . Joseph Brimacombe widefield color image . ... 2010/11/04.50 . ... 2010/11/05.203 . ... Joseph Brimacombe . 2010/11/05.467 . ... mirror . ... JM Llapasset . ... 2011/01/15.160 . ... Back to Bright Supernovae - 2010 . ...
[ Сохраненная копия ]  Ссылки http://www.rochesterastronomy.org/sn2010/sn2010jl.html -- 17.3 Кб -- 17.08.2014
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8. Leonid meteors 2011 | Astronotes
Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Earth Satellites . ... Leonid meteors seen from 13 km altitude aboard an aircraft during the 1999 Leonids Multi-Instrument Aircraft Campaign (Leonid-MAC). Comet Tempel-Tuttle provides the cometary debris for the Leonid meteor shower. ... Every 17-19 November Earth crosses Tempel-TuttleтАЩs orbit and the Leonids become visible. With clear, dark skies observers may see 10 to 15 Leonid meteors every hour on those mornings. ...
[ Сохраненная копия ]  Ссылки http://www.armaghplanet.com/blog/wonders-of-the-november-sky-leonids-meteor-shower.html -- 43.4 Кб -- 09.04.2016
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9. The Motion of Comets
Comets necessarily obey the same physical laws as every other object. ... If one considers only two bodies -- either the Sun and a planet, or the Sun and a comet -- the smaller body appears to follow an elliptical path or orbit about the Sun, which is at one focus of the ellipse. ... Another quantity that is conserved is called angular momentum. ... Comets simply are bodies which in general have more angular momentum per unit mass than do planets and therefore move in more elongated orbits. ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/solar/eng/comet/motion.htm -- 8.0 Кб -- 15.10.1997
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/comet/motion.htm -- 8.8 Кб -- 15.03.1998
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10. http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BBD46B601-4168-4478-A4C2-2F9301EBD6E6%7D
This figure shows, on the left, images of Encke on three successive days from November 6 to November 8; on the right, images of ISON are shown for three successive days from November 9 to November 11. ... Green circles indicate some of the brighter cataloged background stars in each image; yellow marks bracket the comets. The background stars are fixed in each image from top to bottom, so the motion of the comet relative to the stars is clear in each case. ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BBD46B601-4168-4478-A4C2-2F9301EBD6E6%7D -- 4.4 Кб -- 10.04.2016
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