NGC7531 Galaxy in Grus
| DATE | 23 Aug 2016 |
| TELESCOPE OPTICS | 508 mm mirror f.4 .. ccd Kodak KAF8300 3326 x 2504px 5.4 x 5.4µm |
| EXPOSURE | binning 2: composite image, 7 min |
| IMAGE SIZE (ARCMIN) | 30.1 |
| LIGHT TRAVEL TIME (Derived Redshift. Millions Light Years) | NGC7531 = 61 MCG -07-47-027 = 876 2MASX J23153350-4346142 = 875 2MASX J23143039-4326454 = 861 |
| MAGNITUDE | NGC7531 = 12.04 MCG -07-47-027 = 15.18 2MASX J23153350-4346142 = 16.34 2MASX J23143039-4326454 = 16.07 |
| POSITION RA-DEC J2000 | NGC7531 = 23:14:48.50 -43:36:00.0 MCG -07-47-027 = 23:15:38.70 -43:48:03.0 2MASX J23153350-4346142 = 23:15:33.50 -43:46:14.0 2MASX J23143039-4326454 = 23:14:30.40 -43:26:45.0 |
| POSITION ANGLE: | 264 |
| Rotation Velocity km/s | ~160 |
| Size (Light Years) | 164,000 (ESO-LV "Quick Blue" IIa-O) |
| DETAILS | NGC7531, a weakly barred spiral. Supernova SN 2012dj was discovered here. |
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