Object: NGC 643B
Galaxy, type SB0, in Hydrus
Right Ascension (2000.0): 01:39:13.4 (h:m:s)
Declination (2000.0): -75:00:41 (deg:m:s)
m_b: 14.5 (mag) , m_v: 13.5 (mag) , SB: 12.5 (mag per square arcmin)
Dimension: 1.50 x 0.3 (arcmin) , PA: 113
Cross Identifications: ESO 29-53, IRAS01384-7515, PGC 6117