NGC 1023 Group

NGC 1023 Group
Observation data (Epoch )
Brightest memberNGC 1023
Number of galaxies~23 plus 42 candidate members[1][2]
Distance20.6 Mly (6.3 Mpc)

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.[3]

Members

Members of the group
Name Type Magnitude
NGC 1023 SB(rs)0 10.65
NGC 925 SAB(s)d 10.96
NGC 959 Sdm: 12.38
NGC 891 SA(s)b 11.24
NGC 1239 SAB(rs)cd 12.14
NGC 1058 SA(rs)c 12.26
NGC 1003 SAcd 12.1
NGC 949 SA(rs)b? 11.8
NGC 959 Sdm? 12.4
IC 239 SAB(rs)cd 11.1
UGC 2034 Im 13.1
UGC 2023 Im? 13.0
UGC 2165 dE,N 13.7
UGC 2126 SABdm? 13.98
UGC 2157 Sdm? 13.99
NGC 1023A IB? 12.7
UGC 2014 Im? 14.5
UGC 1865 Sm? 14.42
NGC 1023C dE/I 16.31
NGC 1023B dI 16.35
NGC 1023D dE/I 16.51
GALEXASC J024016.48+373731.1 dE,N 16.66
NGC 1023 GROUP:[TT2009] 42 dE 19.25
  • 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.

References

  1. ^ Trentham, Neil; Tully, R. Brent (2009). "Dwarf galaxies in the NGC 1023 Group". Monthly Notices of the Royal Astronomical Society. 392 (2): 722–734. arXiv:0906.2540. Bibcode:2009MNRAS.398..722T. doi:10.1111/j.1365-2966.2009.15189.x. S2CID 18442520.
  2. ^ "NGC 1023 Group". Astronomy Sketch of the Day. March 2014. Retrieved 2020-09-11.
  3. ^ "The Universe within 100 million Light Years - the Virgo Supercluster". Atlas of the Universe.


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