A polar-ring galaxy is a type of galaxy in which an outer ring of gas and stars rotates over the poles of the galaxy. These polar rings are thought to form when two galaxies gravitationally interact with each other. One possibility is that a material is tidally stripped from a passing galaxy to produce the polar ring seen in the polar-ring galaxy. The other possibility is that a smaller galaxy collides orthogonally with the plane of rotation of the larger galaxy, with the smaller galaxy effectively forming the polar-ring structure. (wikipedia)
This is my version of this mag 11.2 object (4.6*2.5 arcmin)
I'm not totally happy with the colors (or lack of them) so I may reprocess this later.
Total exposure is 10h 40min:
L = 25*1200"
RG = 8*300"
B = 8*450"
And here's 100% crop of the galaxy.
Bigger one again in
Astrobin
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