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 Plus CCD Images of Galaxies

... 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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• Las Cumbres Observatory, Asteroids, comets, Messier objects, supernova

... 2001 February 22 . 3C294: Distant X-Ray Galaxy Cluster . ... This Chandra Observatory image centered on a radio galaxy cataloged as 3C294 indeed reveals the telltale hot x-ray gas in an hourglass shaped region surrounding the dominant galaxy and shows the presence of a massive galaxy cluster in the distant universe . ... The cluster associated with 3C294 is 10 billion light-years away making it the most distant x-ray galaxy cluster ever detected . ... About APOD | ...

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• APOD: 2002 February 3 - The Coma Cluster of Galaxies
• APOD: 2004 February 17 - Galaxy Cluster Lenses Farthest Known Galaxy
• APOD: 2008 February 10 - Abell 2218: A Galaxy Cluster Lens

... The Lyman Alpha Forest . ... Strewn throughout the universe are "trees" of hydrogen gas that absorb light from distant objects. These gas clouds leave numerous absorption lines in a distant quasar's spectra, together called the Lyman-alpha forest. M104: The Sombrero Galaxy . ... Named the Sombrero Galaxy for its hat-like resemblance, M104 features a prominent dust lane and a bright halo of stars and globular clusters. ... Galaxies are made up of stars, but are all stars found within galaxies? ...

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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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• Supernova in the Cigar Galaxy | Astronotes
• Rings Around an Asteroid | Astronotes
• Other Galaxies | Astronotes

... Kuiper belt objects are icy bodies in the outer solar system. ... Views of Kuiper Belt Objects . Object 1993 SC . This image shows a small part of the discovery frames of 1993 SC, one of the brightest Kuiper-Belt objects so far discovered. ... Assuming that Object 1993 SC reflects light much like other primitive asteroids and comets in the out solar system, the diameter is around 300 kilometers (186 miles), or just a quarter the size of Pluto's moon Charon. ... Comet Shoemaker-Levy 9 Impact . ...

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• Cannibal Stars Cause Giant Explosions in Fornax Cluster Galaxy (ESO Press
• APOD: December 6, 1999 - M83: The Southern Pinwheel Galaxy from VLT
• APOD: May 3, 1997 - Giant Cluster Bends, Breaks Galaxy Images

... 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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• Laboratory of spectroscopy and photometry of extragalactic objects : Vortex
• Laboratory of spectroscopy and photometry of extragalactic objects : Vortex1

... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Travel to ESO Headquarters . ... ESO Acronyms . ... Survey Telescopes . ... Galaxies . Galaxy Clusters . ... View shopping cart . ... This distant cluster of galaxies was discovered by the XXL survey. ... The distances to individual galaxies were found using ESO and other telescopes, to allow a three-dimensional view of the distribution of galaxy clusters to be determined. ... Early Universe : Galaxy : Grouping : Cluster . ...

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• Comet Halley
• New Population of Distant Galaxies | ESO
• Massive galaxies discovered in the early Universe | ESO

... Luminous blue variable (LBV) stars are the most massive stars with 40-120 solar masses, which are passing the short stage of evolution losing their hydrogen envelopes before exploding as Supernovae. These are extremely rare objects, only about a dozen of the most massive LBVs are known in the Galaxy. ... In the spectral observations of stars with infrared circular nebulae, found in the Spitzer survey (24 microns), a new LBV star in the Galaxy was discovered. It was named MN112. ...

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• RCJ0311+0507
• UGC 2172, NGC 3239
• New LBV Stars in the Andromeda Galaxy

The completion of the 12-mm and 3-mm receiver systems on the Compact Array has secured two new astronomical windows into the southern skies. ... These include investigating the molecular gas reservoirs in and around galaxies in the very distant (high redshift) universe. ... Northern hemisphere millimetre interferometers have already observed molecular gas and dust in a handful of high-redshift radio galaxies, confirming that these objects are still forming the bulk of their stars. ...

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• new_neutron_jetsource
• A survey for H I in the distant Universe: the detection of associated 21-cm
• Peculiar Gas Dynamics in the Starburst Galaxy NGC 253

So how do we find objects on the other side of the Universe? ... The latest instruments enable us to scan large areas of sky. Using Cerro Tololo's Blanco 4m telescope and the Canada-France-Hawaii 3.5 metre telescope , we are able to scan a piece of sky larger than the size of the moon every 5 minutes to a faintness level which allows us to find Type Ia supernovae halfway across the Universe. Type Ia supernovae are very rare - but each image we take contains 50000 galaxies. ...

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• Siding Spring Survey

EMBARGOED UNTIL: 9:20 AM CST, January 6, 1999 CONTACT: John Biretta Space Telecsope Science Institute, Baltimore, MD (Phone: (410) 338-4917; Internet: biretta@stsci.edu) HUBBLE DETECTS FASTER-THAN-LIGHT MOTION IN GALAXY M87 Astronomers reported today discovering clouds which appear to move many times faster than the speed of light, shooting out from the region of a black hole at the center of the M87 galaxy. ... It's an illusion created by the finite speed of light and rapid motion," Biretta said. ...

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• http://www.stsci.edu/ftp/observing/status_reports/old_reports_97/hst_status_05_08_97
• http://www.stsci.edu/ftp/meetings/galaxy-morphology/giraud.ps
• Stellar/Galaxy Objects

... Tonight's Sky . ... The Magazine . ... Star Atlas . ... An artificial comet holds secrets to Earths life . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... The planet has extreme temperature swings and perhaps active lava flows. ... A digital supplement to Astronomy magazine. ... Join TravelQuest International with Astronomy and Discover magazines on one of three great tour options surrounding this celestial spectacle . ... Astronomy Magazine . ...

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• Why can the Hubble Space Telescope see distant galaxies but not exoplanets? |
• February 2003 | Astronomy.com
• More spring objects to observe | Astronomy.com

... A tussle in the distant Universe. This Hubble Space Telescope image shows evidence for a merger between a quasar and a companion galaxy. The quasar is the bright object just beneath the image center, and the wisps of material around it are remains of a galaxy disrupted by the interaction between it and the quasar. ... Galactic Nuclei: Old Quasars? Quasars as Probes of the Distant Universe . ... Quasars. ... The name quasar is made up with parts of the words "quasi-stellar radio." ...

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• ASP: An Ancient Universe - The Age of Light from the Most Distant Galaxies
• ASP: Astronomy Behind the Headlines
• ASP: Monster Comet Promises Big Show

... 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"

Next: Conclusions Up: The Hamburg/SAO Survey for Previous: Non-classified objects . ... Since the main goal of the HSS is an efficient search for new BCGs, the fraction of this type among all new detected ELGs - 84 %, or 80 % among all emission-line objects, is very encouraging. ... Thus a large fraction of BCGs relative to all ELGs is found ( 78 %) demonstrating the high efficiency of this survey to find on the Hamburg Quasar Survey photoplates namely galaxies with H II -type spectra. ...

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• Emission-line galaxies
• Summary of the present status of the survey
• Objects without emission lines

... Supernova Archive for 2013 . ... Sorted by Name For the year 2013 , 1466 supernovae and 59 extragalactic novae were reported. 230 of these supernovae were named by CBAT, 108 were given possible supernova designations, and 1128 were not reported to CBAT. 93 supernovae were found in NGC/IC galaxies, 284 were found in named galaxies 175 objects were discovered by amateurs 6 were brighter than 13th Magnitude 85 were brighter than 16th Magnitude 334 were brighter than 18th Magnitude 493 ...

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• Bright Supernova pages - Statistics for 2010
• Bright Supernova pages - Statistics for 2008
• Bright Supernova pages - Statistics for 1999

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

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• Spacecraft Observing the Sun and the Heavens above
• The Wind Spacecraft

... In the table given at a separate sheet enumerate in growing order (from 1 to 13) the size and the mass of each object: Milky Way Galaxy, Andromeda Galaxy, Neutron star, Electron, Mercury, The first satellite "Sputnik I", Venus, Pluto, Proton, Red dwarf, Black cat, White (Polar) bear, the Sun. ... Star setting. ... Comet Lovejoy. ... Radio- (operating wavelength is about 21 cm) and optical (operating in the light visible to the naked eye) telescopes have been used to study an astrophysical object. ...

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• http://www.issp.ac.ru/iao/apao/2015/booklet/b02_ap15_t_en_a.pdf