M81-M82 (click image to enlarge)
Taken-12/2+26/11,2/9/12
10exps@300s.rgb,2×2-32c
9exps@600s.lum,1×1-32c
21exps@600s.Ha,1×1-32c
AT80edt,ATff,st8300m,7nmHa
CCDStk,Neb2,CS4
More Info http://en.wikipedia.org/wiki/Messier_81
http://en.wikipedia.org/wiki/Messier_82