object: |
messier 81 | ngc 3031; type Sb in Ursa Major |
distance: |
12,000 light years |
visual magnitude: |
8.4 |
apparent dimension: |
21x10 arc minutes |
further object info: |
seds |
telescope: |
celestron 9.25 f/10.5 |
mount: |
losmandy g-11 gemini |
instrument: |
sbig st-10xme + cfw8 + ao-7 |
date: |
6.07.2006 |
location: |
big bear lake, ca |
exposure: |
L:400s x 16 bin1 | R: R:240s x 16 bin2 | G:240sec x 16 bin2 | B:240sec x 16 bin2 |
click in image above to view larger version
