- Source: NGC 2804
NGC 2804 is a lenticular galaxy in the constellation of Cancer. Its velocity with respect to the cosmic microwave background is 8580 ± 20 km/s, which corresponds to a Hubble distance of 126.55 ± 8.86 Mpc (∼413 million light-years). It was discovered by British astronomer John Herschel on 24 February 1827. This galaxy was also observed by the French astronomer Stéphane Javelle on 9 April 1896, and was later added to the Index Catalogue as IC 2455.
According to the Simbad database, NGC 2804 is a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.
One supernova has been observed in NGC 2804: SN 2023ftr (type Ia, mag. 18.5).
See also
List of NGC objects (2001–3000)
References
External links
Media related to NGC 2804 at Wikimedia Commons
NGC 2804 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Kata Kunci Pencarian:
- Daftar eksoplanet
- NGC 2804
- List of NGC objects (2001–3000)
- List of IC objects
- NGC 2800
- NGC 2509
- NGC 2903
- NGC 2950
- NGC 2803
- Kepler-18
