NGC 1023 Group
Group of galaxies about 20.6 million light-years from Earth
| NGC 1023 Group | |
|---|---|
| Observation data (Epoch ) | |
| Brightest member | NGC 1023 |
| Number of galaxies | ~23 plus 42 candidate members[1][2] |
| Distance | 20.6 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
| 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
- ^ 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.
- ^ "NGC 1023 Group". Astronomy Sketch of the Day. March 2014. Retrieved 2020-09-11.
- ^ "The Universe within 100 million Light Years - the Virgo Supercluster". Atlas of the Universe.
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