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

... 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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... 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: February 24, 1998 - The Lyman Alpha Forest
• APOD: 2000 February 6 - The Mysterious Rings of Supernova 1987A
• APOD: 2012 February 26 - The Mysterious Rings of Supernova 1987A

. 66%) of the extreme AGB stars are variable and only smaller fractions of carbon-rich (6.1%) and oxygen-rich (2.0%) stars are detected as variable sources. We also detect a population of variable young stellar object candidates. [ ADS ] . ADS Citation Query . # citations = 41 . citations vs. year [year,citations] . [2009,6][2010,6][2011,8][2012,4][2013,4][2014,4][2015,9] . Copyright 2012 Karl D. Gordon All Rights Reserved

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• Ice Chemistry in Embedded Young Stellar Objects in the Large Magellanic Cloud
• HST this week: 036

... 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
• Bright Supernova pages - Statistics for 1999
• Bright Supernova pages - Statistics for 1997

... Our Galaxy . ... Space Flight . ... No Comments Dim and isolated, the dwarf irregular galaxy WolfтАУLundmarkтАУMelotte (WLM) could be described as an astronomical тАЬliving fossilтАЭ as it seems to have developed since it formed billions of years ago [ ] . Continue Reading.. ... Posted on November 24, 2011 | ... 3 Comments The astronomy community is excited by the discovery of an exploding star, a supernova, in a galaxy 21 million light years away in the constellation Ursa Major. ...

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• Supernova in the Cigar Galaxy | Astronotes
• VP113 Comes Out of the Darkness | Astronotes
• The Mystery Object of M82 | 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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• K-band Arcetri Obscured Supernova Search - Detected Supernovae
• Cannibal Stars Cause Giant Explosions in Fornax Cluster Galaxy (ESO Press
• Next VLT Instrument Ready for the Astronomers (PR Photos 05a-c/00)

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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• Untitled1
• Siding Spring Survey
• The Music of the Spheres

... Asteroid . ... In case you didn't hear about it, which you probably didn't: On Jan. 7, an asteroid 1,000 feet across -- nearly three times the current diameter of Marlon Brando -- barely missed the Earth, which is most likely your planet of residence. ... What if this asteroid had hit the Earth? ... As it happens, the American Astronomical Society was holding a conference in Washington AT THE VERY SAME TIME as the asteroid nearly hit the Earth. ...

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... no comet has been observed with an orbit that indicates that it came from interstellar space, . ... From this he proposed that comets reside in a vast cloud at the outer reaches of the solar system. ... Unfortunately, since the individual comets are so small and at such large distances, we have no direct evidence about the Oort Cloud. ... T he Kuiper Belt is a disk-shaped region past the orbit of Neptune roughly 30 to 100 AU from the Sun containing many small icy bodies. ... Small Bodies .. ...

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• Astronomical Names
• Comet Introduction
• Pluto and Charon

This is a copy of a Press Release from E.S.O. Eight years after the passage of Comet Halley in early 1986, astronomers at the European Southern Observatory have succeeded in obtaining an image of this famous object at a distance of no less than 2,820 million km from the Sun. ... The image shows the 6 x 15 km avocado-shaped nucleus as an extremely faint point of light without any surrounding dust cloud. ... This observation was made with the ESO 3.58 metre New Technology Telescope (NTT). ...

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• High Resolution HST Images of Pluto and Charon (ESO Press Release 09/94)
• The star that exploded on February 23 in the Large Magellanic Cloud | ESO
• First Rotation Period of Kuiper Belt Object Measured (ESO PR Photo 41/98)

. This artist s impression shows how ULAS J1120+0641, a very distant quasar powered by a black hole with a mass two billion times that of the Sun, may have looked. This quasar is the most distant yet found and is seen as it was just 770 million years after the Big Bang. This object is by far the brightest object yet discovered in the early universe. ESO/M. Kornmesser

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B173F049F-0A36-4C2B-994C-AA74060A7C3C%7D
• What effect, if any, do the objects in the Kuiper Belt and Oort Cloud have on
• Most distant quasar found | Astronomy.com

... In one situation, we can use light from quasars to probe the material between us and them because that light may pass through one or more galaxies or gas clouds on its way to us. The gas inside the galaxies or the intergalactic clouds acts then as a filter, absorbing selected wavelengths from the quasar light. ... Light from a quasar must pass through clouds of gas and even faint galaxies -- each leaving its imprint on the light -- before we receive it here on Earth. ... Gravitational lensing . ...

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• ASP: Black Holes
• ASP: Monster Comet Promises Big Show
• ASP: More About Deep Space Objects and Cosmic Terms

... On the base of laboratory simulations (on rotating shallow water) of the formation of spiral arms in galactic gaseous disks, the existence of giant anticyclones in them was predicted. Numerical simulations shown that the vortex structures arise on a linear stage of spiral arms formation simultaneously with the latter. ... Thus second giants structures, after spiral arms, in spiral galactic disks are discovered. ...

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• Search for distant radio galaxies in SAO
• Laboratory of spectroscopy and photometry of extragalactic objects : Vortex
• High-resolution Near-infrared Study of the Deeply Embedded Young Stellar Object

... Subject: G.08 How are stars named? Can I name/buy one? ... The Supernova of 1987 (Supernova 1987A), one of the major astronomical events of this century, was identified with the star named SK -69 202 in the very specialized catalog, the _Deep Objective Prism Survey of the Large Magellanic Cloud_, published by the Warner and Swasey Observatory. These procedures and catalogs accepted by the International Astronomical Union are the only means by which stars receive long-lasting names. ...

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• Arecibo Radar Discovers Triple Near-Earth Asteroid
• The Large Magellanic Cloud
• accomplishments

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
• Objects

... 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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• Metagalaxy sector, archive 2011
• Metagalaxy sector, archive 2007
• Detection of unique bright radio flare of X-ray binary

Astronomy Discussion Forums . Forums: . ... Discussion Forums . ... seeing Southern Deepsky Objects In USA . Forum List | ... Post Message | ... www.astronomy.net . About Astronomy Net | Advertise on 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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• Lowell Observatory Near-Earth Object Search - LONEOS, AstroGuide Listing
• Black Holes And RedShift - an Astronomy Net Blackholes Forum Message
• Moving Objects.. - an Astronomy Net Eyepieces Forum Message

... Bad Astronomy . ... Bitesize Astronomy . ... If you thought our tour of the solar system ended with Neptune and Pluto, you are setting your sights way too low. The planets of the solar system mark time relatively close to the Sun compared to interstellar space. Pluto orbits the Sun at an average distance 40 times that of the Earth, yet the nearest star (the Alpha Centauri system) to the solar system is a mind-numbing 260,000 times the distance of the Earth to the Sun. ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Misconceptions: Coast to Coast Am
• Phil Plait's Bad Astronomy: Info