... The search for distant objects which can be both galaxies and quasars is one of the most important problems of observational astrphysics, because it allows one to determine cosmological parameters connected with the time of appearence and evolution of stellar systems, large scale structure of the Universe. ... Radio galaxies are important objects to be studied because they are sources of infrared-optical-ultraviolet continuum, emission lines and continual radio emission. ...

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• The ROSAT Bright Survey: II. Catalogue of all high-galactic latitude RASS
• GRB follow-up team
• Publications

Next: References for Galaxy Clusters Database . ... Table of Contents - Subject Index - Author Index - Search . Astronomical Data Analysis Software and Systems VIII . ... 172, 1999 . ... References for Galaxy Clusters Database . ... R-Trees for Astronomical Data Indexing . ... ESO/CDS Data-mining Tool Development Project . ... IDL-based Database of Solar Active Regions . ... Copyright 1999 Astronomical Society of the Pacific , 390 Ashton Avenue, San Francisco, California 94112, USA . ...

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• Integrating the HST Guide Star Catalog into the NASA/IPAC Extragalactic
• Classification of Objects in the Guide Star Catalog
• References for Galaxy Clusters Database

Constraining Galaxy Formation Epoch - Age Estimation of High Redshift Galaxies - S. Yi et al. Caltech, USA The galaxy formation epoch (z f ) is an important and unique prod- uct of cosmological models, and thus much e ort has been made to constrain it. The most direct way of constraining z f is to estimate the ages of bright elliptical galaxies at high redshifts arrucately, but it has not been an easy task. ... If we adopt our age estimate, the continuum of this galaxy suggests z f  2 { 3. ...

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• http://www.mrao.cam.ac.uk/projects/skads/lofar/minutes/galaxies.working_group.pdf
• http://www.mrao.cam.ac.uk/projects/skads/lofar/talks/galaxies.working_group.pdf
• The history of star formation and mass assembly in early-type galaxies Bojan

An image of the grand design of spiral galaxy M100 obtained with NASA's Hubble Space Telescope resolves individual stars within the majestic spiral arms. ... Hubble has the ability to resolve individual stars in other galaxies and measure accurately the light from very faint stars. This makes space telescope invaluable for identifying a rare class of pulsating stars, called Cepheid Variable stars embedded within M100's spiral arms. ... 617) 495-7062 . Fax: (617) 495-7356 . ...

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• ChaMPlane
• PAUL J. GREEN - Contributing ConcepTests
• High Energy Astrophysics

Astronomy Discussion Forums . Forums: . Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education . ... Discussion Forums . ... Brightest Northern Hemisphere Galaxy . Forum List | ... Post Message | ... In which constellation would I find the brightest galaxy in the northern hemisphere? ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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... DIGITAL EDITIONS . ... Tonight's Sky . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... 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 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Bright galaxies . ... Get instant access to subscriber content on Astronomy...

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• Bright planets meet at dusk | Astronomy.com
• Bright new supernova blows up in the Cigar Galaxy (M82) | Astronomy.com
• Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets,

... We have compiled the Catalogue of extragalactic supernovae using the GCVS card catalogue. ... Doubtful (?), or rejected (-) SN 8 A1 --- RemFlag [*] The '*' indicates a remark in sn_rem.dat 10- 19 A10 --- Gal Parent galaxy designation 21- 22 I2 h RAh Right Ascension 1950 of Parent galaxy 23- 24 I2 min RAm Right Ascension 1950 (minutes) 25- 28 F4.1 s RAs Right Ascension 1950 (seconds) 29 A1 --- DE- Declination 1950 (sign) 30- 31 I2 deg DEd Declination 1950 of Parent ...

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• General Catalogue of Variable Stars: Vols I-III (the new electronic version).
• General Catalogue of Variable Stars: Description

Supernova 2005ew in anonymous galaxy . This page is devoted to information on Supernova 2005ew in an anonymous galaxy. Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. ... Most of the supernovae found by the Nearby Supernova Factory are faint and almost impossible to find. ... JM Llapasset image . ... mirror . ...

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• Supernova 2004S in MCG -5-16-21
• Supernova 1999X in CGCG 180-22
• THE BRIGHT SUPERNOVA 1991T IN NGC 4527; AN AMATEURS PRESPECTIVE

... FTP access the basic models is here . ... Below, we put short descriptions of the used SED models for the photometric redshifts providing by the current server . ... The uniqueness of this model consists in expanding to the near IR (NIR) of Rocca-Volmerange and Guiderdoni's (1988) atlas of synthetic spectra with a revised stellar library, which includes parameters of cool stars. ... Homepage of the GISSEL model). ... Another model used earlier is the model of synthetic spectra of Poggianti (1997). ...

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• "Radio galaxies and cosmology"
• Related links
• Radio galaxies

... Sternberg Astronomical Institute , Moscow University . ... Present edition unites two parts of Catalogue of interacting galaxies by B.A.Vorontsov-Velyaminov: the first part (Part 1) containing 355 systems was published in 1959 [1] and the second one (Part 2) with 497 objects - in 1976 [2].Thus two published parts of Catalogue include 852 interacting systems. ... All new of them (1162 by number) were taken from the comments to the galaxies in Morphological catalogue by Vorontsov-Velyaminov et al.[ ...

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An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE ANCIENT UNIVERSE . c) The Age of Light from the Most Distant Galaxies: The "Time Machine" Effect . ... Thus we are actually seeing these galaxies not as they are today, but as they were billions of years ago. ... The Universe: An Overview | ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

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• ASP: SETI?s Prospects Are Bright
• ASP: NGC Images on the Net
• ASP: 2012 Award Recipients

... Meade Instruments Corporation . ... Autostar Computer Controllers . 497 Autostar . ... One of the most important advances in telescope control in the past 25 years, the Meade #497 Autostar Computer Controller turns the ETX into an automatic celestial object locating system. ... The #497 Autostar Computer Controller plugs into the control panel of ETX-90EC, ETX-105EC, and ETX-125EC telescopes and enables automatic location of more than 30,000 celestial objects. ... about meade | ... Meade 4M | ...

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• UHTC Coatings: Ultra High Transmission Coatings, Special Coatings, Telescopes,

It is a matter of common knowledge that in processes of genesis and evolution of many solar phenomena participate magnetic fields of sunspots. ... As a basis for formation of the database we take data on magnetic fields, collected by set of observatories during many years of observations. ... Section "Magnetic field data" contains data of magnetic field observation for separate sunspots, presented in standard text format (ASCII). ... Description of structure of these files is presented here . ...

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• Description of database
• Interactive database of solar activity in system of Pulkovo "Catalogue of solar

... Main page News People . ASA . Master . Master net Homepage . ... MASTER . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . ... Latest news and news archive . ... 08.11.2011 . ... All news ...

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... Head of the Department of Emission-line Stars and Galaxies of SAI MSU . ... Structure and kinematics of galaxies . ... Strasburg Database . Hubble Telescope Archive . ... CFHT Archive . ... Chinese evolutionary synthesis Yunnan . Korean evolutionary synthesis Yonsei . Evolutionary synthesis database BaSTI . ... Electronic Journal "New Astronomy" . Electronic Astrophysical Journal . Electronic Astronomical Journal . ... Questions and comments send to Olga Sil'chenko olga@sai.msu.su ...

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... 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: Misconceptions
• Phil Plait's Bad Astronomy: Q and BA
• Phil Plait's Bad Astronomy: Mad Science

The divisity of galaxies. The galaxies are the giant (to hundred of billions of stars) star systems, where the stars are connected by gravitation laws with each other. ... Ther galaxy NGC 3031 . ... Each spiral galaxy has a core a flat disk where the spiral brancher locate. The stars and interstellar substance of spiral galaxies rotate around the core. ... In normal galaxies, such as our Galaxy, the great brightness of the core is accounted for the high concentration of stars. ...

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• greatopeningse

... Visible Distribution of Galaxies. ... Features of Elliptical, Lens-Shaped, Spiral and Irregular Galaxies. Galaxies with Bar. ... Distribution of Surface Brightness of Surface and Spiral Galaxies. ... Color Characteristics of Galaxies. ... Methods of Galaxies' Mass Determination. ... Hidden Mass of Spiral Galaxies. ... Features of Dark Matter Distribution in E and SO Galaxies. ... The Whole Number of Galaxies and Their Density by the Results of Observation on the 'Hubble' Space Telescope. ...

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• Stellar Astronomy
• Spherical and Practical Astronomy

... Field of research: Extragalactic astronomy. ... NASA Astrophysics Data System (ADS) Abstract Service . ... CADC Home Page . ... CCD Images of Galaxies . ... RUSSIAN LINKS . ... UA Astronomy Personal Home Page - Bill Keel . ... The Shape of the Rotation Curves of Edge-on Galaxies, by A.V.Zasov and A.V.Khoperskov, 2003. ... A Thickness of Stellar Discs, by A.V.Zasov, and D.V.Bizyaev, 2003 . Minimum Velocity Dispersion in Stable Stellar Disks, by A.V.Khoperskov, A.V.Zasov, and N.V.Tyurina, 2003 . ...

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... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit?йs . ... des pages consacr?йes ?а la publication de vos photos Mais c'est aussi une vraie communaut?й avec laquelle partager votre passion et nourrir votre curiosit?й. Accueil Le catalogue du projet Galaxy Zoo rendu public . ... Les donn?йes du Galaxy Zoo1, un projet participatif qui invite les internautes ?а classer des galaxies selon leur forme, sont d?йsormais accessibles au public. 900 000 galaxies auscult?йes . ...

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• Les galaxies barr?йes sont moribondes | Ciel et Espace
• Toute la violence dтАЩun amas de galaxies | Ciel et Espace
• Une collision de galaxies en 3D | Ciel et Espace