Wikipedia

NGC 4168

NGC 4168
NGC 4168 with NGC 4165 (above, to the right) and NGC 4164 (to the right), imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension12h 12m 17.2685s[1]
Declination+13° 12′ 18.701″[1]
Redshift0.007582±0.00000667[1]
Heliocentric radial velocity2,273±2 km/s[1]
Distance98.35 ± 10.89 Mly (30.154 ± 3.338 Mpc)[1]
Group or clusterVirgo Cluster
Apparent magnitude (V)12.4g[1]
Characteristics
TypeE2[1]
Size~80,100 ly (24.56 kpc) (estimated)[1]
Apparent size (V)2.03′ × 1.58′[1]
Other designations
VCC 49, 2MASX J12121723+1312192, UGC 7203, MCG +02-31-046, PGC 38890, CGCG 069-081[1]

NGC 4168 is an elliptical galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 2,609±24 km/s, which corresponds to a Hubble distance of 125.5 ± 8.9 Mly (38.48 ± 2.72 Mpc).[1] However, 13 non-redshift measurements give a closer mean distance of 98.35 ± 10.89 Mly (30.154 ± 3.338 Mpc).[2] It was discovered by German-British astronomer William Herschel on 8 April 1784.[3]

NGC 4168 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4][5]

Virgo cluster

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NGC 4168 is a member of the Virgo Cluster.[5][6]

Supernova

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One supernova has been observed in NGC 4168:

  • SN 2026acd (Type Ia, mag. 18.876) was discovered by ATLAS on 14 January 2026.[7]

See also

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References

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  1. ^ a b c d e f g h i j k "Results for object NGC 4168". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 15 January 2026.
  2. ^ "Distance Results for NGC 4168". NASA/IPAC Extragalactic Database. NASA. Retrieved 15 January 2026.
  3. ^ Seligman, Courtney. "New General Catalogue Objects: NGC 4168". Celestial Atlas. Retrieved 15 January 2026.
  4. ^ Véron-Cetty, M.-P.; Véron, P. (2010). "A catalogue of quasars and active nuclei: 13th edition". Astronomy and Astrophysics. 518: A10. Bibcode:2010A&A...518A..10V. doi:10.1051/0004-6361/201014188.
  5. ^ a b "NGC 4168". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 15 January 2026.
  6. ^ "NAME Virgo Cluster". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 15 January 2026.
  7. ^ "SN 2026acd". Transient Name Server. IAU. Retrieved 15 January 2026.
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  • Media related to NGC 4168 at Wikimedia Commons
  • NGC 4168 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images