| DATE | 4 Mar 2013 |
| TELESCOPE OPTICS | 508 mm mirror f.4. ccd sony ICX285AL 1360 x 1024px 6.45 x 6.45µm |
| EXPOSURE | binning 1: composite image, 9 min |
| IMAGE SIZE (ARCMIN) | ~15 |
| LIGHT TRAVEL TIME (Derived Redshift. Millions Light Years) | NGC4811 = 156 NGC4812 = 175 |
| MAGNITUDE | NGC4811 = 14.02 NGC4812 = 14.13 2MASX J12562911-4148163 = 16.83 |
| POSITION RA-DEC J2000 | NGC4811 = 12:56:52.30 -41:47:50.0 NGC4812 = 12:56:52.70 -41:48:48.0 2MASX J12570754-4144118 = 12:57:07.50 -41:44:12.0 2MASX J12571578-4147538 = 12:57:15.80 -41:47:54.0 2MASX J12564179-4149228 = 12:56:41.80 -41:49:23.0 2MASX J12562911-4148163 = 12:56:29.00 -41:48:17.0 |
| POSITION ANGLE: | NGC4811 = 35 NGC4812 = 34 |
| Rotation Velocity km/s | |
| Size (Light Years) | |
| DETAILS | NGC4811 barred spiral NGC4812 edge-on spiral |
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