NGC 542

NGC 542 is a spiral galaxy in the constellation Andromeda, which is approximately 215 million light years from the Milky Way. Together with the galaxies NGC 529, NGC 531, and NGC 536, it forms the Hickson Compact Group 10, abbreviated HCG 10. It was discovered by Irish astronomer R.J. Mitchell in 1885.^[2][3][4]

NGC 536
NGC 542 (left) in HCG 10
Observation data (J2000 epoch)
Constellation	Andromeda
Right ascension	01h 26m 30.825s[1]
Declination	+34° 40′ 31.72″[1]
Redshift	0.015531[1]
Heliocentric radial velocity	4862 km/s[1]
Apparent magnitude (B)	15.4[1]
Characteristics
Type	Scd[1]
Other designations
MCG +06-04-022, PGC 5360[1]

See also

• List of NGC objects (1–1000)