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HCG 1 is a Hickson Compact Group of galaxies identified on Palomar Observatory Sky Survey red prints by Paul Hickson in 1982.[1] It is composed of four interacting member galaxies, two of which are peculiar.[2]

Members

Members of HCG 1[2]
HGC Name Type Mag. Position J2000.0 Estimated Distance
1a PGC 1627 Sbc? peculiar 15.0 RA 00 26 07.1, Dec +25 43 31 460 Mly
1b PGC 1625 S0/a? peculiar 15.5 RA 00 26 06.0, Dec +25 43 09 460 Mly
1c PGC 1614 E1 15.9 RA 00 25 54.4, Dec +25 43 25 450 Mly
1d PGC 1618 S0 17.4 RA 00 25 58.8, Dec +25 43 31 455 Mly

References

  1. ^ Hickson, P. (1982). “Systematic properties of compact groups of galaxies”. The Astrophysical Journal. 255: 382. doi:10.1086/159838. ISSN 0004-637X.
  2. ^ a b “Hickson’s Compact Groups (HCG) of Galaxies”. cseligman.com. Retrieved 2026-04-26.