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irregular galaxy

   Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
irregular galaxy [i′reg·yə·lər ′gal·ik·sē]
(astronomy)
A galaxy which shows no definite order or shape, except that of a general flattened appearance.


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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.
 
 
 
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