Site and content copyright Robert Allevo 2002-2008
|
M81 |
|
|
|
SPIRAL GALAXY in URSA MAJOR
|
|
Technical Details |
|
| Optics | 12.5" RCOS operating at f/6.5 (2063mm) |
| Mount | Paramount ME |
| Camera | SBIG ST-10XME, CFW8-A |
| Filters | Tru Balance LRGB. |
| Date | Feb. 19, 2006 |
| Exposure | LRGB = 3:1:1:1 hours - 5 minute integrations |
| Processing | MaximDl, Photoshop CS |
| Guiding | ST-402 - Sky90 |
| Binning | Lum - 1x1, RGB - 2x2 |
| Location | My back yard observatory in East Hartland, Ct. |
| Notes | M81 is about 11 million light-years distant. It is also known as "Bode's Nebula" |