irregular galaxy


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irregular galaxy
Messier 82

irregular galaxy

n.
A galaxy that does not have the clearly defined shape and structure of an elliptical, lenticular, or spiral galaxy. Irregular galaxies typically contain large amounts of gas and dust, and their stellar populations are relatively young.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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These characteristics led the space agencies to classify it as a dwarf irregular galaxy.  
Summary: TEHRAN (FNA)- The irregular galaxy NGC 4485 shows all the signs of having been involved in a hit-and-run accident with a bypassing galaxy.
Farther out, at 3.4 million light-years, you spy the dim Sagittarius Dwarf Irregular Galaxy patrolling the Local Group's lonely frontier.
Application to the irregular Galaxy NGC1560," Astronomy & Astrophysics, vol.
His is a sure hand as he tillers through the steampunk channels of an "Irregular Galaxy."
The galaxies M81 and M82 in Ursa Major are an interesting pair, M81 being a traditional spiral galaxy, and M82 an active irregular galaxy. M81 was discovered by Johann Bode in 1744, and is sometimes knows as 'Bode's Galaxy'.
The radio supernova was discovered on April 8 in M82, a small irregular galaxy located nearly 12 million light years from Earth in the M81 galaxy group, by the Very Large Array, a New Mexico facility operated by the National Radio Astronomy Observatory (NRAO).
Neff suggests that gravitational pull from another galaxy that passed nearby, perhaps the irregular galaxy M82, could have helped form the ring-shaped feature.
NGC 6052 was initially classified as a single, irregular galaxy by Herschel when it was first discovered in 1784.
On the Border of Cygnus and Cepheus Object Type Surface Mag(v) Size/Sep NGC 6939 Open cluster Brightness 7.8 10' NGC 6946 Spiral galaxy 13.8 8.8 11.5'x 9.8' PGC 64824 Irregular galaxy 13.9 13.7 2.3' x 0.6' "Anonymous" Undefined - - - Object RA Dec.
Klein, "The role of the magnetic field in the interstellar medium of the post-starburst dwarf irregular galaxy NGC1569," The Astrophysical Journal, vol.