... J102815: A Star That Should Not Exist . ... Why does this star have so few heavy elements? ... Stars born.. ... To some, the outline of the open cluster of stars M6 resembles a butterfly. ... Nebulas appear the same. ... Comet Garradd Passes Ten Thousand Stars . ... This cosmic snapshot composed with image data from NASA's Wide-field Infrared Survey Explorer (WISE) satellite captures a multitude of faint stars and distant galaxies toward the constellation Lyra at wavelengths longer than visible...

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... 2004 June 17 . Comet NEAT and the Beehive Cluster . ... But when a bright comet passed in front of a bright star cluster last month, binoculars and cameras were able to show off their marked differences in dramatic fashion. Pictured above, the bright comet, C/2001 Q4 (NEAT) shows many details of its coma and tail, while far in the distance the Beehive open cluster, M44 , shows many of its stars. ... About APOD | ... NASA Web Site Statements, Warnings, and Disclaimers . ...

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• APOD: 2006 March 6 - Unexpected Comet Pojmanski Now Visible
• APOD: 2001 February 7 - Distant Open Cluster M103
• APOD: 2009 January 4 - Breaking Distant Light

... Kalirai and Harvey Richer of the University of British Columbia led the study, which began as an investigation of a globular star cluster in the Milky Way galaxy known as NGC 6397. ... Within the population of stars and galaxies behind NGC 6397, the Hubble image revealed a large elliptical galaxy that contains several hundred globular clusters. ... In fact, a single giant star in NGC 6397 appears 10 million times brighter than one of the distant globular clusters. ...

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• http://www.stsci.edu/~jkalirai/PressStarClustersAstronomy.pdf
• Comets and Conserved Physical Quantities
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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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• Astronomy HyperText Book: Stellar Clusters

... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Green ESO . ... Galaxies . Galaxy Clusters . ... This view includes infrared light images from the WFC3 instrument on the NASA/ESA Hubble Space Telescope as well as visible light views. It shows a close up look at part of the rich galaxy cluster Abell 1689. ... New observations with ALMA and ESOтАЩs VLT have revealed that€аA1689-zD1 is a dusty galaxy seen when the Universe was just 700 million years old. ... Abell 1689 . ...

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• Composite of X-ray and visible light views of a distant cluster of galaxies
• Visible light view of a distant galaxy cluster discovered in the XXL survey |
• Composite of X-ray and visible light views of a distant cluster of galaxies |

... 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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... 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 . ...

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• Terry Mosely's Bulletins

... STScI-PRC99-28 GALAXY COLLISIONS IN DISTANT CLUSTER The group of galaxies -- or "galaxy cluster" -- catalogued as MS1054-03 is 8 billion light-years away, one of the most distant known so far. Although hundreds of galaxies appear in the NASA/ESA Hubble Space Telescope image, a European-led team of astronomers has studied in detail 81 galaxies that certainly belong to the cluster, 13 of which are remnants of recent collisions or pairs of colliding galaxies. ...

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• http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Cosmologia/97-25a.txt
• http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Galassie/0104a-b-c.txt
• Deep X-ray and IR study of the distant X-ray cluster XDCP J0044.0-2033 (Il

Astronotes Armagh Planetarium's Stellar Blog! ... Milky Way . Stars . ... This dramatic image depicts Omega Centauri, one of 200 or so globular clusters orbiting our Milky Way galaxy. ... Swarms of tightly packed stars, numbering in the thousands to low millions, globular clusters are cosmic fossils, relics of the early times of our galaxy. Omega Centauri may actually be the core of a smaller galaxy ripped apart and assimilated by our own Milky Way in the distant past. ...

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• Supernova spotted by Irish astronomer | Astronotes
• M55 globular cluster seen by ESO | Astronotes
• History of the Universe in a Year | Astronotes

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... What is the heaviest element that astronomers can detect? ... The heaviest element that astronomers have found in space is the same as the heaviest element naturally occurring on Earth: uranium. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email...

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• Explosion illuminates invisible galaxy in the Dark Ages | Astronomy.com
• Bright planets meet at dusk | Astronomy.com
• Great observatories find candidate for most distant galaxy | Astronomy.com

... 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. ...

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• ASP: Beacons in the Gloom
• ASP: Star Science in the Autumn Sky
• ASP: An Ancient Universe - The Age of the Chemical Elements

... 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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• What is HISA?
• Pulsar Highlights - A Dozen new MSPs in Globular Clusters
• AAS 1996 January Meeting Photo Release Images

... 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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Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

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... Posts tagged ?light curve? ... Posted by hlee . ... Tags: book , Brieman , cigar , Clinton , data mining , Friedman , Hastie , KDD , light curve , machine learning , SCMA , shaking hands , SN , statistical learning , Supernova , Tibshirani . Category: Algorithms , Cross-Cultural , High-Energy , Jargon , Methods , Quotes , Stat , Uncertainty | Comment . ... Click for what was appeared in arXiv this week. ... Category: arXiv , Data Processing , gamma-ray , Objects , Spectral , Timing , X-ray | ...

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• The AstroStat Slog data mining
• PAUL J. GREEN - Page de la Maison
• The AstroStat Slog Blog Archive my first AAS. IV. clustering

The Sun's corona . ... For instance, short "plumes" rising from the polar regions of the Sun look very much like field lines coming out of the end of a bar magnet, and they therefore suggest that the Sun, in addition to the intense fields of sunspots, also has a global magnetic field like the Earth's. Arches above the . Sun's surface . ... It is brightest near sunspots, whose arched field lines apparently hamper the outflow of solar wind which carries away energy and helps cool the corona. ...

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• Comet Introduction
• First X-Rays From a Comet Discovered
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... Home Articles Observing Resources for Amateur Astronomers ? Part 1: Beginning Observers Observing Resources for Amateur Astronomers ? Part 3: Advanced Observers . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . Observing Resources for Amateur Astronomers - Part 3: Advanced Observers . Observing Resources for Amateur Astronomers - Part 4: Magazines and Miscellany . ...

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• Best Celestial Events of 2006 ? Amateur Astronomers Association of New York
• Deep Sky Images by Joe DiNapoli ? Amateur Astronomers Association of New York
• Comet Hyakutake: The Great ?Earthgrazing? Comet of 1996 ? Amateur Astronomers

. [ Go back to Comet WWW site ] . Andrew A. Martis . martis @ sai.msu.ru .

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• Overview of Character-Level Elements
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[ CATS home ] [ Back to CATS list ] [ ftp ] . 1986USydn.T00J....Reynolds

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• Age of the Universe
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