M81 and M82 (Torben van Hees)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's Galaxy · Cigar Galaxy · M 81 · M 82 · NGC 3031 · NGC 3034

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M81 and M82

Link: http://astro.van-hees.name

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M81 and M82

Link: http://astro.van-hees.name

M81 and M82 are well-known and often-fotographed objects. Still, they are fascinating. While M81 seems undisturbed, M82 is an edge-on starburst galaxy. I find it one of the most fascinating objects in the sky, because it is close enough to be able to discern the H-alpha nebulae streaking out, formed by the star bursts.

My image went quite deep, so I tried to work out some IFN. The ribbon-like structure which seems to flow around the right side of M81 is called Arp's Loop. Arp believed it to be a flux of stars around M81. In reality, it is a stream of gas in our own galaxy which reflects the shine of the Milky Way.

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Status	Advanced success
Started	...
Astrometry.net job	3974472
PixInsight job	ASBB9EBY0TTN8FRPRZQT0JXAGTMOFRZM
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	09h55m04s.395
RA (top/left)	09h56m19s.504
RA (top/right)	10h01m51s.953
RA (bottom/right)	09h53m44s.440
RA (bottom/left)	09h48m32s.531

Dec (center)	+69°18′22″.90
Dec (top/left)	+68°35′23″.55
Dec (top/right)	+69°43′17″.60
Dec (bottom/right)	+70°01′18″.48
Dec (bottom/left)	+68°52′29″.60

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M81 and M82

M81 and M82

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