| Object Data |
| Description |
The Crescent Nebula was created when the fast stellar
wind from the central Wolf-Rayet star collided with its more slowly moving
envelope ejected a hundred thousand years ago when the star was a red giant.
|
| Constellation |
Cygnus the Swan |
| Right Ascension |
20h 12m 58s |
| Declination |
+38° 19' 48" |
| Magnitude |
10.0 |
| Angular size |
20 arcminutes |
| Distance |
1.5 kiloparsecs (5,000 light years) |
| Radial Velocity |
Unknown |
| Image Data |
| Photographer |
Fred Lehman |
| Main Scope |
Meade 14" LX200GPS |
| Imaging Scope |
Celestron 5" SCT @ f/3.3 (415mm) |
| Guide Camera |
Not needed |
| Imaging Camera |
Starlight Xpress MX7C |
| Resolution |
780 x 580 @ 4.1 arcseconds per pixel |
| Exposure |
Eight exposures of two minutes each. Aligned,
stacked, and processed with AstroArt. |
| Date |
April 17, 2004 |
| Location |
Area 51 in Big Cypress National Preserve in central
South Florida. |
