NGC 2890

NGC 2890
The lenticular galaxy NGC 2890
Observation data (J2000 epoch)
ConstellationHydra
Right ascension09h 26m 29.8289s[1]
Declination−14° 31′ 43.135″[1]
Redshift0.017092[1]
Heliocentric radial velocity5124 ± 29 km/s[1]
Distance262.4 ± 18.5 Mly (80.45 ± 5.67 Mpc)[1]
Apparent magnitude (V)14.5[1]
Characteristics
TypeS0-:[1]
Size~79,700 ly (24.44 kpc) (estimated)[1]
Apparent size (V)0.8′ × 0.5′[1]
Other designations
2MASX J09262978-1431436, MCG -02-24-024, PGC 26778[1]

NGC 2890 is a lenticular galaxy in the constellation of Hydra. Its velocity with respect to the cosmic microwave background is 5455 ± 37 km/s, which corresponds to a Hubble distance of 80.45 ± 5.67 Mpc (∼263 million light-years).[1] It was discovered by American astronomer Francis Leavenworth on 11 January 1886.[2][3]

The SIMBAD database lists NGC 2890 as a Seyfert II Galaxy, i.e. it has a quasar-like nuclei with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4]

One supernova has been observed in NGC 2890: SN 2023xnl (type Ia, mag 17.4931) was discovered by the Zwicky Transient Facility on 11 November 2023.[5]

See also

References

  1. ^ a b c d e f g h i j k "Results for object NGC 2890". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 4 August 2024.
  2. ^ Celestial Atlas entry for NGC 2890. Retrieved 4 August 2024.
  3. ^ Seligman, Courtney. "New General Catalogue Objects: NGC 2890". Celestial Atlas. Retrieved 15 December 2024.
  4. ^ "NGC 2890". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 15 December 2024.
  5. ^ "SN 2023xnl". Transient Name Server. IAU. Retrieved 15 December 2024.

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