... 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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... 2015 October 15 . M16 and the Eagle Nebula . Image Credit Copyright : Jimmy Walker . Explanation: A star cluster around 2 million years young surrounded by natal clouds of dust and glowing gas, M16 is also known as The Eagle Nebula. ... Described as elephant trunks or Pillars of Creation , dense, dusty columns rising near the center are light-years in length but are gravitationally contracting to form stars . ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

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• APOD: 2008 July 19 - M16 and the Eagle Nebula
• APOD: 2014 June 7 - M16 and the Eagle Nebula
• APOD: 2002 March 6 - Simulated Galaxy Cluster View

... 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: July 9, 1999 - NGC 7789: Galactic Star Cluster
• APOD: January 6, 1999 - M6: The Butterfly Cluster
• APOD: 2000 August 4 - M15: Dense Globular Star Cluster

... A telescopic tour of the constellation Sagittarius offers the many bright clusters and nebulae of dimensioned space in a starscape surrounding the galactic center. ... Around The Arches Cluster . ... The most compact cluster of stars known in our galaxy, the Arches cluster, boasts 100 or so massive, young stars contained within a diameter of one light-year. ... The Cartwheel Galaxy is part of a group of galaxies about 500 million light years away in the constellation Sculptor. ... April 2016 . ...

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Proceedings of Turbulent Shear Flows XI , 1997. NASA Technical Paper # 3555 , 1997. Proceedings of European Turbulence Conference VI , 1996. ESPRI Research Report # 104, 117-143 (1996) . ... Proceedings of Turbulent Shear Flows X , 1995. ASME Paper 95-GT-437 , 1995. ... Invited AIAA Paper 94-2281 presented at the 1994 AIAA Fluid Dynamics Conference, Colorado Springs, CO. AIAA Paper 94-2323, presented at the 1994 AIAA Fluid Dynamics Conference, Colorado Springs, CO. ...

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... NGC 5252 is an S0 galaxy at a redshift of z 0.0230. ... NGC 5252 harbors a Seyfert 2 nucleus which illuminates a defined biconical structure of ionized gas extending up to 17 kpc ( = 100 ) from the center of the galaxy (Tadhunter & Tsvetanov 1989, Prieto & Freudling 1995). ... The SUMA code (Viegas & Contini 1994, and references therein) calculates the emission spectra (lines and continuum) from a shocked cloud which may also be affected by photoionizing radiation, in a plane-parallel geometry. ...

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• HST Spectral Maps of Accretion Disks in Cataclysmic Binaries
• The M87 Globular Cluster System Revisited
• The Astronomy Thesaurus and UDC - Present and Future (Group Discussion for

ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Information & tools for observers . ... Australia Telescope Online Archive (ATOA) . ... ATCA | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The Australia Telescope National Facility Colloquium . ...

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• Australia Telescope National Facility
• Programme - Abstract
• New book details 135 chapters of SKA science | Australia Telescope National

... We summarize the discussions that took place during the FITS Birds of a Feather (BoF) session, which was held Monday, September 23, 1996 at 16:00. For completeness we also include a summary of the 1995 FITS BoF, which was never published. ... Oral papers by Clarke, Allen, Mink, Mandel, and Wells were presented in a special FITS afternoon session, and posters were presented by Pence, Farris, Tripicco, and Stobie; see the papers by these authors elsewhere in this volume. ... CFITSIO (Pence) . ...

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• WIP -- An Interactive Graphics Software Package
• Electronic Colophon
• Simulated AXAF Observations with MARX

... We have made observations of the Perseus cluster with the Westerbork Telescope at 610 MHz. ... Several newly detected sources are identified with cluster galaxies. ... No evidence is found for the existence of the previously reported ~ 65'x25' cluster halo, 3C 84B. Key words: radio galaxies - clusters - tailed radio sources buoyancy The Perseus Cluster of galaxies is one of the most fascinating systems accessible to extragalactic astronomers. ...

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• Apache mod_rewrite Technical Details - Apache HTTP Server
• The Spectrophotometrical complex in Nasmyth-1 focus
• Computational Methods

I'm glad you're interested in collaborating on the ConcepTests for Astronomy WWW database project! ... Paul . ... a) high luminosity, high temperature to low luminosity, low temperature . b) high luminosity, low temperature to low luminosity, low temperature . c) high luminosity, low temperature to low luminosity, high temperature . d) high luminosity, high temperature to low luminosity high temperature. ... Back to Paul Green's Peer Instruction page. ... Back to Paul Green's HomePage . ...

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• The AstroStat Slog Blog Archive Quintessential Contributions
• The AstroStat Slog Blog Archive Classification and Clustering
• The AstroStat Slog Jargon

... This talk focuses on exploring the connection between Ly absorbers and galaxies. The theorist view of gas in the low z universe is based on the filamentary structures that are evident in simulations based on the CDM paradigm. ... The observer's view of gas in the low-z universe is based on the Ly absorbers which have column densities as low as 10 cm , while galaxies are at column densities of 10 cm . ... The absorber has N cm . ... Can examine LSS defined by gas-rich galaxies around absorbers. ...

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• Henry Draper Biography
• Pulsar Highlights - A Dozen new MSPs in Globular Clusters
• Colloquium Schedule

News & Views There seems to be something very healthy about astronomical research when, under the same cover, an event which took place in 1333 AD (Leonid bursts as a resonance meteoroid component from Comet Temple/Tuttle) is discussed followed by a paper on how we might more effectively search for extraterrestrial intelligence (in the optical). In this issue we also have a further paper on young clusters (Praesepe) and the low end of the stellar mass function (see IAJ , 1999, 26(1), 17). ...

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• C.J. Butler, Research Astronomer
• William Herschel
• Press Release: International Collaroration led by Armagh Astronomers

... Observatory . ... Science . ... Science Users Information > Science Publications > Archive of the ESO Enews > ESO-Enews #3: March 2007 . ... The Call for Proposals for observations at the ESO telescopes during Period 80 (October 1, 2007 - March 31, 2008) has been released. ... The full Call for Proposals and the ESOFORM electronic submission package can be obtained at http://www.eso.org/observing/proposals/index.html . ... For more information see http://www.eso.org/gen-fac/meetings/agnii2007/ . ...

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• ESO - Newsletter January 2016
• ESO - Newsletter July 2014
• ESO - cosmology2002

... This Symposium is part of the IAU General Assembly taking place in Manchester in August 2000. ... For details of what to do if you wish to attend please see the IAU site attendance and registration . If you need to contact us about the programme, please note the designated contact person for IAU 201 is Prof. Rod Davies at Jodrell Bank ( rdd@jb.man.ac.uk ) and the Chair of the Scientific Organising Committee is Anthony Lasenby at Cambridge ( a.n.lasenby@mrao.cam.ac.uk ).) ... Monday 7th August . ...

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• Astrophysics Group AMI Science
• Astrophysics Group STFC announces бе119 million contribution to The Square
• XXVIIth YERAC Contributions

Планета Земля и Луна . ... Космическая защита . Луна . Фотографии . ... Строение Луны . ... Страница: Начало одиссеи , Экспедиции , Море Кризисов , "Аполлон-8" , "Аполлон-9" , "Аполлон-10" , "Аполлон - 11" , E-8 "Луноход" , Испытания Л-1 , Луноход - 1,2 , КА "Луна 1-24" , КА "Луна-9" , Луна от КА СССР ; . Луна - наш космический спутник . ... Снимки Луны от аппаратов серии Луна и Зонд (СССР) . Фотографии космических аппаратов серии "Луна" (также Луноходы) и "Зонд" - СССР . ... Зонд 3 . ...

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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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• Digital Stellar Spectra
• The Galaxy Gallery: Messier Objects
• Low Surface Brightness Galaxy Gallery

... GSAOI Home . ... Science . ... Deep imaging at J , H , and K is required to identify all stellar objects, brown dwarfs, and planetary mass objects in the central region of the Orion Nebula Cluster down to masses comparable to that of Jupiter. This is required to establish the initial mass function, i.e., the number of stars of each mass that have formed, in this region of intense massive star formation. ... The fields of the GSAOI detectors are shown as four green squares in each frame. ...

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• THE AUSTRALIAN NATIONAL UNIVERSITY
• Julie Banfield | Astronomer
• University Problem Based Learning Exercises for Teaching Astronomy and Physics

You can help us assist teachers around the world in bringing the wonders of astronomy to their students. ... Write an article for the newsletter: . Are you an astronomer, teacher or other educator interested in writing an article for the Universe in the Classroom ? Contact the editor with your idea for a topic. You will then receive more detailed guidelines for submitting an article. Bring the Universe in the Classroom to teachers in your part of the world: . ...

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• ASP: An Ancient Universe - Changes in Stars
• ASP: Harold McNamara Steps Down As Editor of ASP Conference Series
• ASP's 2011 Annual Meeting

... Over the first 4 years, its X-ray telescopes eROSITA and ART-XC will survey the whole sky with a record sensitivity in the 0.5-10 keV energy band. ... The goal of the second international Spectrum-RG conference is to discuss the different scientific topics addressed by the mission, synergies with surveys at other wavelengths, and requirements to follow-up observations.Contributed talks and poster presentations are invited on the topics related to the SRG science goals. ... Active galactic nuclei . ...

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• Zeldovich-100 / International Conference / Moscow, Russia

Participant 5 (P5) ================== Dr. V.P. Tishkovets - Astronomical Observatory, Kharkov University, UA Dr. N.N. Kiselev - Astronomical Observatory, Kharkov University, UA P.V. Litvinov - 26 years old; Astronomical Observatory, Kharkov University, UA S.A. Beletsky - 28 years old; Astronomical Observatory, Kharkov University, UA The head of the team, Dr. Tishkovets, and Mr. Litvinov made many investigations of light scattering by clusters of particles - analogues of interplanetary dust grains. ...

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• Introduction