The Cigar Galaxy


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By
Catalog
Obj Type
Location
Date Taken:
SSRO
Messier 82
Galaxy
Mayhill, NM
05-22-2006
Description

M82 was discovered by Johann Elert Bode in 1774.

Forming a most conspicuous physical pair with its neighbor, M81, 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.

Technical Details
Exposure Time:
L-HaLGB-HaLRGB (L 1 hour, Ha 3.5 hours and 1 hour each for each color with colors binned 2x2
Camera:
SBIG STL-11000M
Telescope:
RCOS 16 inch f/8.7 Ritchey-Chretien
Mount:
Software Bisque Paramount ME
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