... 2004 December 4 . Reflecting Merope . Credit: George H. Herbig Theodore Simon ( IfA, U. Hawaii ), Hubble Heritage Team , NASA . Explanation: In the well known Pleiades star cluster , a star's light is slowly destroying this wandering cloud of gas and dust . ... Pressure of the star's light significantly repels the dust in the reflection nebula with smaller dust particles being repelled more strongly. ... About APOD | ... NASA Web Site Statements, Warnings, and Disclaimers . ...

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• APOD: 2005 December 30 - The Perseus Cluster of Galaxies
• APOD: 2003 December 27 - The Pleiades Star Cluster
• APOD: 2000 December 19 - A Close Up of Aurora on Jupiter

... M4: The Closest Known Globular Cluster . ... Credit: T2KA , KPNO 0.9-m Telescope , NOAO , AURA , NSF Explanation: M4 is a globular cluster visible in dark skies about one degree west of the bright star Antares in the constellation Scorpius . ... Although containing hundreds of thousands of stars and spanning over 50 light-years, M4 is one of the smallest and sparsest globular clusters known. ... Publications with keywords: cluster - M4 - globular cluster . ... Globular Star Cluster M3 . ...

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• Messier 9 Close Up
• Reflecting Merope

... December 13, 1997 . The Coma Cluster of Galaxies . ... The Coma Cluster of Galaxies pictured is one of the densest clusters known - it contains thousands of galaxies . Each of these galaxies house billions of stars - just as our own Milky Way Galaxy does. ... In fact, the Coma Cluster is so big it takes light millions of years just to go from one side to the other! Most galaxies in Coma and other clusters are ellipticals , while most galaxies outside of clusters are spirals . ...

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• APOD: December 17, 1996 - Mariner's Mercury
• APOD: December 6, 1999 - M83: The Southern Pinwheel Galaxy from VLT
• APOD: December 18, 1999 - Irregular Galaxy Sextans A

... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Publications overview . ... Careers overview . ... ATNF facilities . ... MRO Support Facility . Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Current telescope status . ... Scientific support of facilities . ... ATNF Operations Overview . ... Meetings . ...

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• ATNF/AAO Postdoc Symposium 2011
• CASS News
• ASKAP Survey Science Teams Working Meeting

... 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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• Deep Sky Images by Joe DiNapoli ? Amateur Astronomers Association of New York
• Lecture Series 2010-2011 ? ?Particle Physics at the LHC and Cosmology? by
• Lecture Series 2015-2016 ? Amateur Astronomers Association of New York

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Telescopes and Observatories . ... The majestic star-forming region in the Lagoon Nebula. The pale ring to the right is an internal reflection in the telescope.€а (Image credit: ESO/ VPHAS+/ V. Kalari and J. Vink (Armagh Observatory) . ... The 18 component images were further processed twice. ... Venu and his colleagues use images like this to identify individual young forming stars in the Lagoon Nebula and determine their ages. ...

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• M55 globular cluster seen by ESO | Astronotes
• Hubble Space Telescope sees into Omega Centauri's future | Astronotes
• The Blue Planet | Astronotes

... The sharp vision of Hubble's Advanced Camera for Surveys uncovered the speedy white dwarfs in the ancient globular star cluster NGC 6397, a dense swarm of hundreds of thousands of stars. ... The distribution of young white dwarfs is the exact opposite of what we expected," said astronomer Harvey Richer of the University of British Columbia in Vancouver. ... The idea that young white dwarfs are born with a kick was suggested 30 years ago to explain why there were so few of them in open star clusters....

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• Archive for December
• Exlporing the Early Universe
• December 2011

... 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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... 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

... Archives . ... my first AAS. ... I was questioned by two attendees, acquainted before the AAS, if I can suggest them clustering methods relevant to their projects. ... classification vs. clustering or supervised learning vs. unsupervised learning : the former terms from the pairs indicate the fact that the scientist already knows types of objects in his hands. ... Tags: Classification , clustering , cosmology , spatial statistics , supervised learning , test , unsupervised learning . ...

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• The AstroStat Slog Blog Archive Classification and Clustering
• The AstroStat Slog astronomers
• The AstroStat Slog 2007 December

Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

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• University of Oregon Center for High Energy Physics - Public Lectures
• Constrains on Dark Matter
• Dark Matter in the Universe

. Home . News . Gallery . Events . Twitter . Press Releases . Links . Contact Us . Calendar . Press & Web Coverage . Previous . Next . List . Some photographs from renewed amateur astronomer John McConnell, taken in 2008 and the beginning of 2009. International Year of Astronomy, Ireland National Node . [Back To Top] .

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• Armagh Observatory
• Living in the Sun's Atmosphere: Monday 8 December 2008 | International Year of
• Terry Mosely's Bulletins

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

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• About ST-ECF

Astronomy Articles . Articles | ... Moon | ... Astronomy Binoculars - The Skies The Limit - by Scott Gray, September 2006 . ... Astronomy Terms - To Help You Study The Universe - by Scott Gray, October 2006 . ... Himalia is the only moon other than Europa, Ganymeade, Callisto and IO visible with small telescopes. ... The Harvest Moon refers to the Full Moon that comes closest to the autumnal equinox, or the first day of autumn. ... Think the study of stars is best left to professional astronomers? ...

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• The Dreadful Beauty of Medusa | ESO
• Close up view of the bright star cluster Messier 47 | ESO
• A close look at the young stars in the open star cluster NGC 2547 | ESO

... An artificial comet holds secrets to Earths life . ... Astronomers recently discovered that Scholz's star passed close to the Sun 70,000 years ago. Wouldn't its gravity have sent Oort Cloud comets raining into the inner planets? ... COMETS | OORT CLOUD . Based on the number of long-period comets that enter the inner solar system, astronomers estimate there are probably trillions of them in the Oort Cloud. Get instant access to subscriber content on Astronomy.com! ... Discover | ...

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• A tough comet survives a close encounter with the Sun | Astronomy.com
• December 2006 | Astronomy.com
• December 2015 | Astronomy.com

... Plasma sheet is the region of closed field lines in the equatorial magnetotail (however, see also plasmoids ). Plasma sheet is typically divided into plasma sheet proper, or central plasma sheet , and plasma sheet boundary layer (PSBL) , the latter being at higher latitudes adjacent to the tail lobes. ... This is evident both in storms time ring current and substorm time plasma sheet (including late growth and the expansion phases; see, e.g., Daglis et al., ... Res., ... J. Geophys. ...

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• The Acceleration of the Aurora
• Galileo to Jupiter
• The Wind Spacecraft

A Canadian and American team of Astronomers have used the 305-m wide Arecibo radio dish, the world's largest and most sensitive radio telescope, to uncover a dozen new super-fast-spinning pulsars. The team directed their search for these rare and exotic stars by pointing the Arecibo radio telescope towards massive star clusters, called Globular Clusters, orbiting our Milky Way galaxy. ... One of the most exotic residents in the Globular cluster system are the millisecond pulsars. ...

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• The Pleiades
• AGES - the Arecibo Galaxy Environment Survey
• CIMA Buttons

... at 14 00 on Friday, December 7 , 2001 . 87-th seminar) . ... David Blaschke (University of Rostock, Germany), G. Poghosyan (Yerevan State University, Armenia), H. Grigorian (Yerevan State University, Armenia) . Population clustering as a signal for deconfinement in accreting compact stars " . 45 min . ... Close young compact objects " . ... The secretary of the seminar - M.E.Prokhorov . Access free (code 4385) . ...

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• Cosmion-99

. F IGURE . 2. The distribution of globular clusters projected onto the XY [(a) and (c)] and YZ [(b) and (d)] planes for metal-rich clusters of the thick disk with [Fe/H] -1.0 [(a) and (b)] and metal-poor clusters of the halo [(c) and (d)]. The closed curves are upper envelopes drawn by eye. Clusters lying far from the central concentrations in the diagrams are outlined and their numbers indicated. discussion in the text | previous figure | next figure .

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