... 2012 December 16 . MWC 922: The Red Square Nebula . ... Explanation: What could cause a nebula to appear square? ... A leading progenitor hypothesis for the square nebula is that the central star or stars somehow expelled cones of gas during a late developmental stage . ... Researchers speculate that the cones viewed from another angle would appear similar to the gigantic rings of supernova 1987A , possibly indicating that a star in MWC 922 might one day itself explode in a similar supernova . ...

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• APOD: 2013 December 29 - Time Lapse Auroras Over Norway
• APOD: 2013 December 18 - Light Pillars over Finland
• APOD: 2012 December 3 - A Quadruple Lunar Halo Over Spain

... 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. ...

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• Phil Plait's Bad Astronomy: Info

... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...

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• ASP: Astronomy in the News
• ASP: Articles on Education from Mercury Magazine
• ASP: An Ancient Universe - Introduction

... This meteor shower, which reaches a peak of up to 120 meteors per hour, as seen from a clear, dark site, can be observed anytime after about 10.00pm for a few nights either side of the maximum, that is from about the 12 to 16 December. The Geminid meteors, which sometimes appear as brightly coloured relatively slow-moving fireballs, are caused by small particles mostly about the size of marbles or smaller, ejected into space from the surface of the near-Earth asteroid Phaethon . ... NASA Site . ...

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• Armagh Observatory
• Terry Mosely Astronomy Bulletins
• Terry Mosely's Bulletins

... NGC 5584: Expanding the Universe . ... Big, beautiful NGC 5548 is more that 50,000 light-years across and lies 72 million light-years away toward the constellation Virgo. The winding spiral arms of this gorgeous island universe are loaded with luminous young star clusters and dark dust lanes. Still, for earthbound astronomers NGC 5548 is not just another pretty face-on spiral galaxy. Kepler s Suns and Planets . ... To find them, Kepler monitors.. ... T Tauri and Hind s Variable Nebula . ...

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... STScI-PRC97-38a HUBBLE SEES SUPERSONIC EXHAUST FROM NEBULA M2-9 is a striking example of a "butterfly" or a bipolar planetary nebula. Another more revealing name might be the "Twin Jet Nebula." If the nebula is sliced across the star, each side of it appears much like a pair of exhausts from jet engines. ... The central star in M2-9 is known to be one of a very close pair which orbit one another at perilously close distances. ... M2-9 is 2,100 light-years away in the constellation Ophiucus. ...

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• APOD: December 18, 1999 - Irregular Galaxy Sextans A
• APOD: December 29, 1997 - The Milky Way in Infrared
• Astronomy Picture of the Day

Euro-Asian Astronomical Society . The International Astronomy Olympiad . The International Olympiad of Euro-Asian Astronomical Society was founded on June, 7, 1996, as an annual astronomy competition for high-school students. ... Founding Statutes of the International Astronomy Olympiad Ratified 07.06.1996 . ... Preliminary International Astronomy Olympiad 1990 . Preliminary International Astronomy Olympiad 1991 . ... of the International Olympiad of Euro-Asian Astronomical Society, . ...

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• The 2 nd Asian-Pacific Astronomy Olympiad
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Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Comets and Asteroids . ... Space Flight . ... Posted on June 29, 2015 | 759 Comments Maybe you have seen one of the alarming videos or emails circulating around the internet claiming that the End is Nigh. ... Continue Reading.. ... Posted on December 5, 2014 | ... Posted on October 18, 2013 | ... 3 Comments In February 2013, the asteroid 2012 DA14 flew past the Earth closer than many of the EarthтАЩs geo-stationary satellites. ...

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• Astronotes | Armagh Planetarium's astronomy news from across the Universe -
• - Part 39
• amateur astronomy | Astronotes - Part 9

... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...

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... The blue bubble is a planetary nebula known as Abell 33. Planetary nebulae are created when an aging star blows away its outer layers of gas in a gigantic cosmic bubble. ... Creating the illusion of the cosmic diamond is a bright star along the rim of the nebula. ... The star is about 700 light years away, that is halfway between Earth and the nebula. ... At the centre of the ring, you can see the remains of the star that created this planetary nebula, now a white dwarf . ...

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• http://www.eso.org/public/news/eso1511/kids/
• http://www.eso.org/public/news/eso1151/kids/
• http://www.eso.org/public/news/eso1441/kids/

Astronomy Discussion Forums . ... Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... New model: How do the Sun and Moon appear to move across the sky - mito111 - September 15, 2011 - 04:22 UTC . ... Note the change - rick_crockett - April 19, 2007 - 09:38 UTC . ... A Question Regarding Photons and Absolute Zero - inalitalllane - December 25, 2004 - 22:06 UTC . ... Virtual Space Agency - dupagepilot - November 18, 2003 - 12:03 UTC . ... www.astronomy.net . ...

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• Articles written by astronomers for astronomers of all ages.
• Magnification On ETX 90EC - an Astronomy Net Meade Equipment Forum Message
• Orange County Astronomers, AstroGuide Listing

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

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• ESO Press Release 06/96, 16 February 1996
• Formation and Evolution of Quasars

... Henry Draper, a doctor by trade, was a prominent American amateur scientist and an early pioneer of astronomical photography. ... Aside from the star catalog bearing his name, Henry Draper is best known for obtaining the first photograph of an astronomical nebula, recording the Great Nebula of Orion on the night of September 30, 1880. ... Draper, Henry", by Charles A. Whitney, 1971, in the Dictionary of Scientific Biography , ed. Charles Coulston Gillispie (New York: Scribner), v. 4, p. 178 . ...

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• Magellanic Stream
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• National Astronomy and Ionosphere Center (Arecibo Observatory)

... All significant tables, images, and spectra published in journals should appear in the astronomical data centres. ... Journals, data centres, and users should collaborate to define formats, table descriptions, and metadata that are easy for authors to adhere to, and can automatically be entered by the data centres into their databases. ... Major astronomical journals and data centres should provide free or reduced-cost electronic access to institutions in developing countries. ...

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• December 2005 ATUC meeting agenda and supporting documents
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... Archive for December 2009 . ... Posted by hlee . ... Category: Algorithms , arXiv , Cross-Cultural , Jargon , Methods , Quotes , Stat , Uncertainty | Comment . ... Category: arXiv , Astro , Stat | ... Comments RSS . ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray . ...

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• John Bishop Elementary School Photo Gallery
• The AstroStat Slog 2007 December
• forteachers

... Home Education Workshops at Adorama Astro Imaging Workshop: Planetary Astro Imaging with a DSLR ? December 7, 2014 . ... Astro Answers . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Presented by€а Adorama€а For the Amateur Astronomers Association of New York . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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• Observing ? Amateur Astronomers Association of New York
• Lecture Series 2011-2012 ? тАЬThe Astronomical Future of HumankindтАЭ ? Alex
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Russian . ... text in Russian) . ... The Behaviour of the Bz Component of the Magnetic Field in Coronal Mass Ejections . ... Cooperation of IZMIRAN and Sternberg Astronomical Institute in the Study of the Sublimational Component of the Solar Coronal Radiation . ... Solar Wind and Magnetic Storms in the 24th Solar Activity Cycle . ... text in English) . ... The Solar Corona in the Light of TRACE Observations . ... Expeditions of Irkutsk Astronomers to Total Solar Eclipses in 1981--2012 . ...

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• Welcome to Astronomical Circular
• Astronomical Devision

The silicates that produce the 10 and 18 micron features appear to be broadly similar to terrestrial minerals such as Forsterite and Enstatite. ... Where pre-solar silicate dust grains can be isolated from meteorite material, these also tend to be Mg-rich silicates rather than Fe-rich silicates. ... It has been suggested that the interstellar silicate grains have a different 10 micron feature profile than what is observed for the silicates around evolved stars. ...

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• Archive for December
• STAN - December 1998
• NICMOS Data Handbook

... Tonight's Sky . ... Observing . ... Sky this Month . ... Astronomy for Kids . ... Can you explain Mercury's retrograde motion? Do other planets appear to do this also? ... When astronomers talk about retrograde motion, generally they refer to the apparent motion outer planets make as Earth passes them while orbiting the Sun. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• December 2003 | Astronomy.com
• Christmas Comet Lovejoy captured at Paranal | Astronomy.com
• Hubble captures first-ever predicted exploding star | Astronomy.com

National Aeronautics and Space Administration . ... Carl E. Walz (Colonel, USAF, Ret.) NASA ASTRONAUT (FORMER) . ... NASA EXPERIENCE: Selected by NASA in January 1990, Walz is a veteran of four space flights, and has logged a total of 231 days in space. He was a mission specialist on STS-51 (1993), was the Orbiter flight engineer (MS-2) on STS-65 (1994), was a mission specialist on STS-79 (1996), and served 196 days in space as flight engineer (FE-1) on ISS Expedition-Four (2001-2002). ...

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• Astronaut Bio: Robert Allan Ridley Parker
• Astronaut Bio: James A. Lovell
• Astronaut Bio: Robert Curbeam (12/2007)