| DATE | 23 Oct 2012 |
| TELESCOPE OPTICS | 508 mm mirror f.4 effective f/4.6 with paracorr2. ccd sony ICX285AL 1360 x 1024px 6.45 x 6.45µm UHC filter |
| EXPOSURE | binning 1: composite image, 5 min |
| IMAGE SIZE (ARCMIN) | ~12 |
| LIGHT TRAVEL TIME (Derived Redshift. Millions Light Years) | NGC643c = 192 |
| MAGNITUDE | NGC643c = 15.64 |
| POSITION RA-DEC J2000 | NGC643c = 01:41:49.10 -75:16:05.0 |
| POSITION ANGLE: | 150 |
| Rotation Velocity km/s | |
| Size (Light Years) | 113,000 (ESO-LV "Quick Blue" IIa-O) |
| DETAILS | NGC643c is an edge-on-spiral galaxy and part of the ngc643 group. |
