NGC 4493

NGC 4493
NGC 4493 imaged by Pan-STARRS
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension12h 31m 08.3699s
Declination+00° 36′ 49.325″
Redshift0.023083±0.00000934
Heliocentric radial velocity6,920±3 km/s
Distance355.28 ± 8.60 Mly (108.930 ± 2.638 Mpc)
Apparent magnitude (V)14.5g
Characteristics
TypeE
Size~178,600 ly (54.76 kpc) (estimated)
Apparent size (V)1.16′ × 0.74′
Other designations
2MASX J12310835+0036496, MCG +00-32-017 NED01, PGC 41409, CGCG 014-056 NED01

NGC 4493 is a large elliptical galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 7,266±24 km/s, which corresponds to a Hubble distance of 349.5 ± 24.5 Mly (107.17 ± 7.51 Mpc). Additionally, 30 non-redshift measurements give a similar mean distance of 355.28 ± 8.60 Mly (108.930 ± 2.638 Mpc). It was discovered by German astronomer Albert Marth on 22 March 1865.

NGC 4493 is neighbored to the southeast by the elliptical galaxy PGC 1170468 [de].

Supernovae

Two supernovae have been observed in NGC 4493.

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 "Results for object NGC 4493". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 4 August 2026.
  2. 1 2 "Distance Results for NGC 4493". NASA/IPAC Extragalactic Database. NASA. Retrieved 4 August 2026.
  3. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 4493". Celestial Atlas. Retrieved 4 August 2026.
  4. ↑ Wild, P. (1994). "Supernova 1994M in NGC 4493". International Astronomical Union Circular (5982): 2. Bibcode:1994IAUC.5982....2W.
  5. ↑ "SN 1994M". Transient Name Server. IAU. Retrieved 4 August 2026.
  6. ↑ Graham, J.; Foley, R. J. (2004). "Supernova 2004br in NGC 4493". International Astronomical Union Circular (8340): 1. Bibcode:2004IAUC.8340....1G.
  7. ↑ "SN 2004br". Transient Name Server. IAU. Retrieved 4 August 2026.