
| Object Data | |
| Description | M13 is the largest, brightest, and prettiest globular cluster in the northern skies. Even modest amateur telescopes show it as a blazing ball of stars. |
| Constellation | Hercules, bastard son of Zeus |
| Right Ascension | 16h 41m 49s |
| Declination | -36° 41' 49" |
| Magnitude | 5.8 |
| Angular size | 23.2 arcminutes |
| Distance | 7.0 kiloparsecs (23,000 light years) |
| Radial Velocity | -246.6 kilometers per second (approaching) |
| Image Data | |
| Photographer | Fred Lehman |
| Main Scope | Meade 14" LX200GPS @ f/5.0 (1775mm) |
| Guide Scope | Celestron 5" SCT @ f/7.5 (950mm) |
| Guide Camera | SBIG STV |
| Imaging Camera | Starlight Xpress MX7C |
| Resolution | 780 x 580 @ 1.0 arcseconds per pixel |
| Exposure | Twelve exposures of 1 minute each. Aligned, stacked, and processed with AstroArt. |
| Date | March 20, 2004 |
| Location | Mid Florida Star Gaze at Kye's Star Farm in Venus, Florida. |