
| Object Data | |
| Description | M31 is the most famous spiral galaxy in the sky. It is by far the largest of the three large spirals in our local group of galaxies. |
| Constellation | Andromeda the Princess |
| Right Ascension | 0h 42m 57s |
| Declination | +41° 17' 23" |
| Magnitude | 4.3 |
| Angular size | 189 arcminutes |
| Distance | 0.7 megaparsecs (2.25 million light years) |
| Radial Velocity | -300 kilometers per second (approaching) |
| 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 | 1440 x 1065 @ 4.1 arcseconds per pixel, reduced to 780 x 575 @ 7.6 arcseconds per pixel. |
| Exposure | Mosaic of four frames with fifteen exposures of one minute each. Aligned, stacked, and processed with AstroArt. The four frames were combined with Picture Publisher. |
| Date | December 13, 2003 |
| Location | North shore of Jim Lake in Dupuis Nature Preserve in central South Florida. |