Object | M82 |
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Description | Forming a most conspicuous physical pair with its neighbor, M81 (THE showpiece galaxies for many Northern hemispherers), this galaxy is the prototype of an irregular of the second type, i.e. a “disk” irregular. Its core seems to have suffered dramatically from a semi-recent close encounter with M81, being in a heavy starburst and displaying conspicuous dark lanes. This turbulent explosive gas flow is also a strong source of radio noise, discovered by Henbury Brown in 1953. The radio source was first called Ursa Major A (strongest radio source in UMa) and cataloged as 3C 231 in the Third Cambridge Catalogue of Radio Sources. |
Image | |
Scope | C8 |
Camera | ST2000XCM |
Mount | Losmandy G11 |
Filters | Baader IR |
Guiding | Self Guided |
Exposure Info | 6 hours of exposure time (24x15min) |
Date | November 12, 2006 |
Copyright | Photo copyright Thomas Kerns, Beluga Lake Observatory |