Site and content copyright Robert Allevo 2002-2010
|
NGC 4631 |
|
|
|
EDGE-ON SPIRAL GALAXY in CANES VENATICI
|
|
Technical Details |
|
| Optics | 12.5" RCOS operating at f/6.2 |
| Mount | Paramount ME |
| Camera | SBIG ST-10XME, CFW8-A |
| Filters | Tru Balance LRGB. |
| Date | June 4, 2005 |
| Exposure | LRGB = 90:30:30:30 minutes |
| Processing | MaximDl, Photoshop CS |
| Guiding | Self Guided |
| Binning | Lum - 1x1, RGB - 2x2 |
| Location | SkyFoto Observatory in East Hartland, Ct. |
| Notes | NGC 4631 is about 25 million light-years distant. It is also known as the "Whale Galaxy". Above this galaxy is a small elliptical galaxy NGC 4627. |
Previous Attempt
|
|
|
Technical Details |
|
| Optics | 12.5" RCOS operating at f/9 (2857mm) |
| Mount | Paramount ME |
| Camera | SBIG ST-10XME, CFW8-A |
| Filters | Tru Balance LRGB. |
| Date | May 17, 2005 |
| Exposure | LRGB = 30:18:18:18 minutes - 3 minute integrations |
| Processing | MaximDl, Photoshop CS - Needed more data |
| Guiding | Unguided - No PEC |
| Binning | Lum - 2x2, RGB - 3x3 |