... 2009 September 15 . NGC 6888: The Crescent Nebula . ... Explanation: NGC 6888, also known as the Crescent Nebula, is a cosmic bubble about 25 light-years across, blown by winds from its central, bright, massive star. ... The star is shedding its outer envelope in a strong stellar wind , ejecting the equivalent of the Sun's mass every 10,000 years. ... Found in the nebula rich constellation Cygnus, NGC 6888 is about 5,000 light-years away. ... About APOD | ... A service of: ASD at NASA / GSFC . ...

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• APOD: 2008 August 13 - NGC 6888: The Crescent Nebula
• APOD: 2012 August 16 - NGC 6888: The Crescent Nebula
• APOD: 2004 May 5 - NGC 6302: Big, Bright, Bug Nebula

... 12.11.2006 . ... This image from the Hubble Space Telescope reveals the Cat's Eye Nebula to be one of the most complex planetary nebulae known. In fact , the features seen in the Cat's Eye are so complex that astronomers suspect the bright central object may actually be a binary star system . ... Publications with keywords: Cat's Eye Nebula - planetary nebula - binary star . Publications with words: Cat's Eye Nebula - planetary nebula - binary star . ... The Cats Eye Nebula from Hubble . ...

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• The Cat's Eye Nebula

... 2001 January 23 . Spherical Planetary Nebula Abell 39 . ... Planetary nebula Abell 39 , now six light-years across, was once a sun-like star's outer atmosphere expelled thousands of years ago. The nearly perfect spherical nature of Abell 39 allows astronomers to accurately estimate how much relative material is actually absorbing and emitting light. ... Abell 39 lies about 7000 light years away, although several galaxies millions of light years away can be seen through and around the nebula. ...

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• APOD: 2000 April 24 - Reflection Nebula M78
• APOD: May 22, 1996 - Star Cluster in the Rosette Nebula
• APOD: September 5, 1998 - The Pulsar Powered Crab

... Stars . ... Straight away the three stars in his belt will grab your attention, followed by the glittering white star Rigel in his left foot and the bright orangish star Betelgeuse in his right shoulder (assuming Orion is standing facing us and not with his back to us). ... Orion Belt?s with the stars Alnitak, Alnilam and Mintaka. ... In short, Orion was a big, loud giant of a man and indeed a mighty hunter, he also inherited some aquatic superpowers from his father who was the sea god Neptune. ...

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• Astronotes | Armagh Planetarium's astronomy news from across the Universe -
• NGC4666: Secrets of a Starburst Galaxy | Astronotes
• Tarantula Nebula in stunning Hubble Image | Astronotes

... 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/eso1121/kids/
• http://www.eso.org/public/news/eso1117/kids/
• http://www.eso.org/public/news/eso1250/kids/

... A brief look at Sakurai?s Object . ... Sakurai?s Object (V4334 Sagittarii) was discovered on the 20 th of Febuary 1996 by a Japanese astronomer Yukio Sakurai. ... Initially astronomers thought it to be a nova (an explosion on the surface of a white dwarf). ... When it failed to show any hydrogen emissions from the star, the charateristic of a nova, they realised that this was a very interesting star. ... Sakurai?s object was in fact a white dwarf when it went through this last helium burst. ...

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• M.D. Smith, Research Astronomer
• Armagh Observatory
• Stealth Comets

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

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• Astronomy HyperText Book: Interstellar Medium

... 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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... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

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• The Scale of the Solar System

... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . The Golden Earring, planetary nebula NGC 2867, and barred spiral galaxy NGC 3109 . ... Hubble observes a dwarf galaxy with a bright nebula . ... While it lacks the elegant spiral arms of many larger galaxies, NGC 2366 is home to a bright star-forming nebula and is close enough for astronomers to discern its individual stars. ...

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• Hubble offers a dazzling view of the Necklace Nebula | Astronomy.com
• Spooky alignment of quasars across billions of light-years | Astronomy.com
• Bright planets meet at dusk | Astronomy.com

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

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• Solar Bridge Across New York Harbor ? Amateur Astronomers Association of New
• Deep Sky Images by Joe DiNapoli ? Amateur Astronomers Association of New York
• Astro-Imaging ? Amateur Astronomers Association of New York

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Апрель 1998 . ... Дата: 03 апреля 1998 (1998-04-03) От: Alexander Bondugin Тема: Hubble Reveals Details Of A Newly Born Planetary Nebula Привет всем! ... STScI-PR98-15 HUBBLE REVEALS DETAILS OF A NEWLY BORN PLANETARY NEBULA Astronomers have caught a peek at a rare moment in the final stages of a star's life: a ballooning shroud of gas cast off by a dying star flicking on its stellar light bulb. ...

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PLAINTEXT> Elliptical Galaxy NGC 4261 STSCI PR-92-27B Wide Field/Planetary Camera HST Image of NGC 4261: A giant disk of cold gas and dust fuels a possible black hole at the core of the galaxy. Estimated to be 300 light-years across, the disk is tipped enough (about 60 degrees) to provide astronomers with a clear view of the bright hub, which presumably harbors the black hole. ... Hot gas rushes from the vicinity of the black hole's creating the radio jets. ...

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• Spectroscopy of Planetary Nebulae
• Results
• Spatially Resolved Narrow-Band Imagery of the Compact Planetary Nebulae Hu 2-1

... Bad Astronomy . ... Mad Science . ... Site Info . ... Public Talks . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Who is this guy who calls himself "The Bad Astronomer?" ... First, yes, I am a real live astronomer (when people ask me what astronomers do, I tell them "They astronom !" ... These are emitted by powerful objects like black holes, exploding stars, and super-dense neutrons stars. ... Finally, am I really a bad astronomer? ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Mad Science
• Phil Plait's Bad Astronomy: Misconceptions

GALAXIES cenA .tiff 40 Bright Radio Galaxy M31.tiff Nikon Andromeda Galaxy (note HII regions in spiral arms) ngc6744.tiff 40 NGC 6744 a face-on spiral clouds_20d.tiff H'blad The Magellanic Clouds our nearest neighbours Lmc_7.tiff Nikon The Large Magellanic Clouds Lmc_zoom.tiff Nikon Detail of previous image smc_7.tiff Nikon The Small Magellanic Clouds smc-zoom.tiff Nikon Detail of previous image 30dor_40_BVR.tiff 40 The 30 Dor ... B [OIII] Halpha trifid.tiff 40" The Trifid Nebula. ...

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• http://www.mso.anu.edu.au/~geoff/HEA/Magnitudes.pdf
• GSAOI Magellanic Cloud Planetary Nebulae Science Page
• GSAOI Orion Nebula Cluster Science Page

http://hubblesite.org/newscenter/archive/releases/1996/22/text/ Probing the mysterious heart of the Crab Nebula, the tattered remains of a stellar cataclysm witnessed more than 900 years ago, astronomers using NASA's Hubble Space Telescope have found that the Crab is even more dynamic than previously understood, based on a cosmic "movie" assembled from a series of Hubble observations. ... Because of this flickering, the neutron star is also called a "pulsar." ...

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... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...

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• Optical component of GRB080319B

... The Pleiades star cluster, also known as the Seven Sisters and Messier 45, is a conspicuous object in the night sky with a prominent place in ancient mythology . ... The stars in the Pleiades are thought to have formed together around 100 million years ago, making them 1/50th the age of our sun, and they lie some 130 parsecs (425 light years ) away. ... Data for these stars are listed in a table below. ... Yes . ... WEBDA Pleiades cluster data . ... M45: The Pleiades Star Cluster (2007 November 18) ...

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• WISP Observations of the Pleiades in the Ultraviolet
• M42 Color Images

... 12 Oct 02 2006 1.9 Jan 26 2006 8 CB,CS,R=F. R=G, SMALL, TIGHT, BRIGHT NGC 1912 M38 17mmAT 2012 M.M . Open Cluster 8.0 II 2 r CL,B,VL,VRI,IF,STL$S Mar 16 2012 18 Mar 01 2011 12 Mar 08 2010 12 Dec 16 2009 12 Mar 20 2009 16 Mar 17 2007 1.9 17mmAT M.M . 2011 - MANUAL SETTING CIRCLES M.M . 2010 MANUAL SETTING CIRCLES 26mm 20mmUW MESSIER MARATHON - 2009 26mm ...

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• http://www.wro.org/neumann/RNGC_by_Constellation-Cep.pdf
• http://www.wro.org/scodova/RNGC_by_Constellation-Sge.pdf
• The M111 - "OnLine"

In autumn 1994, two groups of astronomers announced that they had discovered Cepheid variable stars in a distant cluster of galaxies. ... As the term suggests, variable stars change in brightness over time. ... Variable stars are an ideal way to get high-school students doing real science, with real data, from the real sky. ... a sky chart to find the stars . ... Students can use the nearby stars to estimate the magnitude of Delta. ... Locate the star Delta in Cepheus and estimate its brightness . ...

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• ASP: An Ancient Universe - The Age of Light from the Most Distant Galaxies
• ASP: Monster Comet Promises Big Show
• ASP: NGC Images on the Net