NGC 833

NGC 833 is an intermediate spiral galaxy in the constellation Cetus. It has an active Hubble-type Sa nucleus, and lies south of the celestial equator. It is estimated to be 173 million light-years from the Milky Way and about 75,000 light-years in diameter.^[1] Together with NGC 835, NGC 838 and NGC 839 it forms a group of galaxies cataloged as Hickson Compact Group 16 (Arp 318).^[3] Halton Arp divided his catalog of unusual galaxies into groups based on purely morphological criteria.^[1]

NGC 833
NGC 833 (left) and NGC 835 (right)
Observation data (J2000 epoch)
Right ascension	02h 09m 20s[1]
Declination	−10° 07′ 59″[1]
Apparent magnitude (V)	13
Apparent magnitude (B)	14.02
Surface brightness	23.14 mag/arcsec2
Other designations
MCG -02-06-030, PGC 8225[2]

See also

• Atlas of Peculiar Galaxies
• Interacting galaxy