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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... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

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. Next: Stellar objects Up: Non emission-line objects Previous: Non emission-line objects . For five bright non-ELG galaxies the signal-to-noise ratio of our spectra was sufficient to detect absorption lines, allowing the determination of redshifts. The data are presented in Table 5. Daemon user for apache . 1999-04-14

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• Absorption-line galaxies
• The Hamburg/SAO Survey for Emission-Line Galaxies
• The main observational parameters

... 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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• SCORPIO: IFP Gallery
• Laboratory of spectroscopy and photometry of extragalactic objects : Vortex
• GRB follow-up team

The high-redshift radio-loud quasar PKS 2126-158 is found to have a large number of red galaxies in close apparent proximity.We use the Gemini Multi-Object Spectrograph (GMOS) on Gemini South to obtain optical spectra for a large fraction of these sources. We show that there is a group of galaxies at z 0.66, coincident with a metal-line absorption system seen in the quasar s optical spectrum. ... All confirmed members exhibit early-type galaxy spectra, a rare situation for a MgII absorbing system. ...

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• HI Absorption as a Tracer of Nuclear Rings in Galaxies
• Peculiar Gas Dynamics in the Starburst Galaxy NGC 253
• Localised HI 21-cm absorption towards a double lobed z=0.24 radio galaxy

Astronomy Picture of the Day . Behind CL1358+62: A New Farthest Object . ... 31.07.1997 . ... Credit: M. Franx ( U. Groningen ) G. Illingworth ( UCSC ), WFPC2 , HST , NASA Explanation: What if we could see back to the beginning of the universe? At one tenth the universe's present age , we might see galaxies forming . ... Practically all of the yellow-white objects in the photograph are galaxies in a nearby cluster which together act as a lens in amplifying the light from the ancient galaxy. ...

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• Астронет > Behind CL1358+62: A New Farthest Object
• Hoags Object: A Strange Ring Galaxy
• Астронет > Hoags Object: A Strange Ring Galaxy

... July 31, 1997 . Behind CL1358+62: A New Farthest Object . ... At one tenth the universe's present age , we might see galaxies forming . But what did galaxies look like when they were forming? ... In technical terms, this galaxy lies at the record redshift of z=4.92. Practically all of the yellow-white objects in the photograph are galaxies in a nearby cluster which together act as a lens in amplifying the light from the ancient galaxy. ... About APOD > . ...

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• APOD: 2013 July 28 - Hoag's Object: A Strange Ring Galaxy
• APOD: 2002 September 9 - Hoags Object: A Strange Ring Galaxy
• APOD: 2004 August 15 - Hoags Object: A Strange Ring Galaxy

... Colours of stars and galaxies hold information on intrinsic and extrinsic parameters, such as stellar temperatures and galaxy populations, selective absorption and colour changes due different dust contents and inclination angles of galaxies, as well as galaxy redshifts and evolution. ... The colour magnitude diagram of 65000 galaxies to which all above-mentioned quantities and others contribute can only be explained by comparison with simulations. ... Colours are also of technical help. ...

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• The past, present and future appearances of the Refsdal supernova | ESO
• BL Lacs
• The Browne & March? Effect

The Spitzer Space Telescope Legacy Program SAGE-SMC allows global studies of resolved stellar populations in the SMC in a different environment than our Galaxy. ... Our method of identifying YSO candidates builds on the method developed for the Large Magellanic Cloud by Whitney et al. with improvements based on what we learned from our subsequent studies and techniques described in the literature. ...

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• Stellar/Galaxy Objects
• Acquisition Count Rates for Extended Objects
• ST ScI Preprint #1396

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

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• Galaxy sector, archive 1994
• Lack of Dwarf Galaxies in the Local Volume Compared to Conventional Cosmology
• New Polar Ring Galaxies

... Next: Unsupervised Catalog Classification Up: Object Detection and Previous: Classification of Objects . ... Multi-resolution allows for image analysis in terms of different scales. ... This approach is used for the detection (and subsequent analysis) of globular cluster systems around elliptical galaxies, and for image characterization and object trawling in large image databases. ... The applicability of this approach to object detection in large image collections has been investigated. ...

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• Classification of Objects in the Guide Star Catalog
• Grid OCL : A Graphical Object Connecting Language
• ADASS 2003 Conference Proceedings

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Our Galaxy . ... Stars . ... Space Flight . ... This activity is believed to be promoting the unusually high rate of star formation seen in M82. ... Radio image of M82 made with the MERLIN and VLA telescopes. Insets show MERLIN images from April 25th and May 3rd 2009 demonstrating the sudden appearance of the mystery object.?а All images are at a frequency of 5 GHz. ... Mystery object in Starburst Galaxy M82 . ...

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• Other Galaxies | Astronotes
• galaxies | Astronotes
• Seven Amazing Astronomical Gifts for Christmas | Astronotes

Galaxy evolution is occurring in the present epoch in the Local Universe, through gas accretion, and gas consumption through star formation. ... Star formation processes in the Local Group ( Edvige Corbelli , Carlo Giovanardi , Laura Magrini ) . Gas and dust content and radiation transfer modeling of nearby spirals ( Simone Bianchi , Edvige Corbelli , Carlo Giovanardi , Leslie Hunt , Ciro Pappalardo ) . ...

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• Galaxy archaeology over the last 7 billion years
• Accretion disks in luminous young stellar objects
• Deep Space Objects

General Forum Message . Forums: . ... Deep Space Object Galaxy Near M13 . ... Can anyone tell me if there is a DSO (likely a galaxy) near M13? ... The reason it interests me is that I drew a sketch of M13 years and years ago while observing - and that object is one of the handful of 'stars' that I drew. ... www.astronomy.net . About 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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• Black Holes And RedShift - an Astronomy Net Blackholes Forum Message

... 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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... Courtesy of NASA/ESA Observation data (J2000 epoch) Constellation Right ascension Declination Redshift Distance Type Serpens Caput 15h 17m 14.4s[] +21° 35 08[] 12,740?50 km/s[][1] 600?30 Mly (183?8 Mpc)[1] SA0(r) [citation needed ] [a] Apparent dimensions (V) 0.28 в 0.28[] Apparent magnitude (V) 16.0[] Notable features Ring galaxy Other designations PGC 54559,[] PRC D-51[] See also: Galaxy, List of galaxies Hoag's Object is a non-typical galaxy of the type known as a ring galaxy. ...

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... We suggest simple method of the selection of distant galaxies based on their radio properties. ... RC0015+0503a , RC0015+0503b , RC0015+0501 , RC0034+0513 , RC0038+0449 , RC0042+0504 . ... RC0105+0501 , RC0110+0500 , RC0117+0503 , RC0126+0502 , RC0133+0459 , RC0135+0450 , RC0137+0539 , RC0143+0505 , RC0152+0453 , RC0154+0459 , RC0159+0448 . ... RC0209+0501b , RC0213+0516 , RC0226+0512 , RC0250+0512 . ... RC0302+0456 , RC0308+0454 , RC0311+0507 , RC0318+0456 , RC0355+0449 . ...

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• "Radio galaxies and cosmology"
• Informational system "Evolution of RG"
• Description of SED models

... Cross-shaped galaxy ZGC 2315+03 (Fig.1) has been described by Zwicky (1971) as ``post-eruptive or the result of the crossing of a compact galaxy through an edge-on spiral'' . This object was included in the Polar-Ring Catalog (C-71) by Whitmore et al. (1990) as a possible candidate for Polar-Ring Galaxies (PRG). ... One of them is galaxy 'disk' and the other is 'polar-ring'. ... The facts against the polar-ring nature of ZGC 2315+03 can be summarized as follows: . ...

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• Slide shows and posters | Radiation mechanisms of astrophysical objects:
• Conference Proceedings | Radiation mechanisms of astrophysical objects:
• Scientific rationale | Radiation mechanisms of astrophysical objects: classics

. SOME OF WELL-KNOWN DEEP SKY OBJECTS: . All images taken with 150/695mm homemade Newton reflector + SBIG ST6 CCD camera (falsecolors) . The treasures of Orion - some special images . Some galaxies on the Lion's mane . Messier 98, 99, 100 - three fine galaxies in Coma . NGC 6946 and NGC 6939 - nice galaxy and fine star cluster in one field of view. HOME (Eng) | HOME (Rus)

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Next: Critical Frequencies and Gravitational Previous: Extragalactic Gravitational Wave Background . The number of binaries per frequency decade per solid angle from a separate stellar system (galaxy or cluster of galaxies) is . ... For example, for the Andromeda galaxy M31 ( rad, ) one gets . ... If the angular size of the galaxy is less than the angular resolution of the detector, the critical frequency is independent of the angular resolution, . ...

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• The Present Situation in the Galaxy
• How to Catch ``Rare'' Tracks
• Concluding Remarks and Future Prospects