Astronomy:NGC 1023 Group

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Short description: Group of galaxies about 20.6 million light-years from Earth
NGC 1023 Group
Observation data (Epoch )
Brightest memberNGC 1023
Number of galaxies~5 plus 8 candidate members[1]
Distance
(co-moving)
20.6 Mly (6.3 Mpc)
See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters

The NGC 1023 Group is a group of galaxies about 20.6 million light-years (6.3 Mpc) away from Earth. It is a group in the Local Supercluster, along with the Local Group.[2]

Members

Members of the group
Name Type Magnitude
NGC 1023 SB(rs)0 +10.65
NGC 925 SAB(s)d +10.96
NGC 891 SA(s)b +11.24
NGC 1239 SAB(rs)cd +12.14
NGC 1058 SA(rs)c +12.26
  • Probable (dwarfs): DDO 024, DDO 025.
  • Possible members: NGC 672, IC 1727, NGC 1156(?).
  • Possible (dwarfs): DDO 011, DDO 017, DDO 019, DDO 022, DDO 026.

Map

The location of the NGC 1023 group within the Virgo supercluster (as part of the Laniakea supercluster) can be found near the center of this diagram - below the blue "Local Group" mark.

Literature

Trentham, Neil; Tully, R. Brent (2009). "Dwarf galaxies in the NGC 1023 Group". Monthly Notices of the Royal Astronomical Society 392 (2): 722–734. doi:10.1111/j.1365-2966.2009.15189.x. Bibcode2009MNRAS.398..722T. 

References