NGC1532 and 1531 Galaxies in Eridanus
DATE | 29 Nov 2016 |
TELESCOPE OPTICS | 508 mm mirror f.4 .. ccd Kodak KAF8300 3326 x 2504px 5.4 x 5.4µm |
EXPOSURE | binning 2: composite image, 3min |
IMAGE SIZE (ARCMIN) | 30 |
LIGHT TRAVEL TIME (Derived Redshift. Millions Light Years) | NGC1532 = 44 NGC1531 = 50 2dFGRS S922Z181 = 46 2dFGRS S922Z109 = 2051 2dFGRS S922Z103 = 1378 ESO 359- G 029 = 37 IC 2041 = 54 |
MAGNITUDE | NGC1532 = 10.65 NGC1531=12.91 2dFGRS S922Z181 = 17.37 2dFGRS S922Z109 = 19.16 2dFGRS S922Z103 = 18.44 ESO 359- G 029 = 15.5 IC 2041 = 14.85 |
POSITION RA-DEC J2000 | NGC1532 = 04:12:04.30 -32:52:27.0 NGC1531 = 04:11:59.30 -32:51:03.0 2dFGRS S922Z181 = 04:11:26.50 -32:51:27.0 2dFGRS S922Z109 = 04:12:25.60 -33:04:45.0 2dFGRS S922Z103 = 04:12:30.20 -33:04:59.0 ESO 359- G 029 = 04:12:50.60 -33:00:07.0 IC 2041 = 04:12:34.90 -32:49:03.0 |
POSITION ANGLE: | 251 |
Rotation Velocity km/s | 245 |
Size (Light Years) | NGC1532 = 356,000 (ESO-Uppsala "Quick Blue" IIa-O) |
DETAILS | Small cluster of galaxies, ngc1532 has thick dust lanes in spiral arms,.Supernovae SN 1981A and SN 2016iae with the Transient 2016ija still visible in this image were discovered in this region. The top image shows the supernovae (before and after) |