NGC1645 and NGC1643 Galaxies in Eridanus

DATE 7 Dec 2013
TELESCOPE OPTICS 508 mm mirror f.4 . effective f4.6 with paracorr2. ccd Kodak KAF8300 3326 x 2504px 5.4 x 5.4µm
EXPOSURE binning 2: composite image, 17 min
IMAGE SIZE (ARCMIN) 21
LIGHT TRAVEL TIME (Derived Redshift. Millions Light Years) NGC1645 = 215
NGC1643 = 214
2MASX J04440559-0525467 = 210
MAGNITUDE NGC1645 = 13.88
NGC1643 = 14
2MASX J04440559-0525467 = 16.4b
POSITION RA-DEC J2000 NGC1645 = 04:44:06.40 -05:27:56.0
NGC1643 = 04:43:43.90 -05:19:10.0
2MASX J04440559-0525467 = 04:44:05.60 -05:25:47.0
POSITION ANGLE:  
Rotation Velocity km/s NGC1645 = no data
NGC1643 = no data
Size (Light Years) NGC1645 = 143,000 (RC3 D_25; R_25 (blue))
NGC1643 = 70,000 (RC3 D_0 (blue))
DETAILS NGC1645 is a ringed barred spiral and NGC1643, a barred spiral has produced supernovae SN 1995G and SN 1999et

rollover image
1645