NGC 5123

NGC 5123
NGC 5123 imaged by Pan-STARRS
Observation data (J2000 epoch)
ConstellationCanes Venatici
Right ascension13h 23m 10.5284s
Declination+43° 05′ 10.750″
Redshift0.027658±0.00000900
Heliocentric radial velocity8,292±3 km/s
Distance408.3 ± 28.6 Mly (125.18 ± 8.76 Mpc)
Apparent magnitude (V)13.6g
Characteristics
TypeScd
Size~172,200 ly (52.81 kpc) (estimated)
Apparent size (V)1.20′ × 1.11′
Other designations
IRAS 13209+4320, 2MASX J13231050+4305108, UGC 8415, MCG +07-28-005, PGC 46767, CGCG 218-006

NGC 5123 is a spiral galaxy in the constellation of Canes Venatici. Its velocity with respect to the cosmic microwave background is 8,487±14 km/s, which corresponds to a Hubble distance of 408.3 ± 28.6 Mly (125.18 ± 8.76 Mpc). It was discovered by German-British astronomer William Herschel on 9 April 1787.

NGC 5123 is a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.

Supernova

One supernova has been observed in NGC 5123:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 5123". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 24 February 2026.
  2. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 5123". Celestial Atlas. Retrieved 24 February 2026.
  3. ↑ "NGC 5123". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 24 February 2026.
  4. ↑ Best, P. N.; Heckman, T. M. (2012). "On the fundamental dichotomy in the local radio-AGN population: Accretion, evolution and host galaxy properties". Monthly Notices of the Royal Astronomical Society. 421 (2): 1569. arXiv:1201.2397. Bibcode:2012MNRAS.421.1569B. doi:10.1111/j.1365-2966.2012.20414.x.
  5. ↑ Puckett, T.; Gagliano, R.; Orff, T. (2008). "Supernova 2008dz in NGC 5123". Central Bureau Electronic Telegrams (1430): 1. Bibcode:2008CBET.1430....1P.
  6. ↑ "SN 2008dz". Transient Name Server. IAU. Retrieved 24 February 2026.