NGC6845 Galaxy in Telescopium
| DATE | 29 May 2014 |
| TELESCOPE OPTICS | 508 mm mirror f.4 . ccd
Kodak KAF8300
3326 x 2504px 5.4 x 5.4µm |
| EXPOSURE | binning 2: composite image, 12 min |
| IMAGE SIZE (ARCMIN) | 27 |
| LIGHT TRAVEL TIME (Derived Redshift. Millions Light Years) | NGC6845A = 274 NGC6845B = 291 NGC6845C = 305 NGC6845D = 294 ATCA J2001.2-4659 = 287 |
| MAGNITUDE | NGC6845A = 14.28 NGC6845B = 14.86 NGC6845C = 16.3 NGC6845D = 15.5 ATCA J2001.2-4659 = na |
| POSITION RA-DEC J2000 | NGC6845A = 20:00:58.40 -47:04:13.0 NGC6845B = 20:01:05.30 -47:03:33.0 NGC6845C = 20:00:56.80 -47:05:03.0 NGC6845D = 20:00:53.60 -47:05:43.0 ATCA J2001.2-4659 = 20:01:15.60 -46:59:30.0 |
| POSITION ANGLE: | 252 |
| Rotation Velocity km/s | NGC6845A -B-C-D = NA |
| Size (Light Years) | NGC6845A = (RC3 D_0 (blue)) 204,140 NGC6845B = (ESO-LV "Quick Blue" IIa-O) 255,000 (this aeems anomalous and is more likely about 80000 diameter NGC6845C = (ESO-LV "Quick Blue" IIa-O) 170,000 NGC6845D = (RC3 D_25; R_25 (blue) 75,600 |
| DETAILS | NGC6845A is a 2 armed barred spiral and the largest in the group. Supernova SN 2009DA was discovered in one of it's arms. NGC6845B is a barred spiral. NGC6845C is a spiral, almost edge-on as is NGC6845D |
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