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)

ngc1532

rollover image
1532