NGC 2804
This article will address the topic of NGC 2804, which has aroused growing interest in recent times. From different perspectives and approaches, this topic has generated debates and reflections in various areas, such as society, culture, politics, economics and science. Its implications, its evolution over time and its relevance today will be explored, with the aim of offering a comprehensive and detailed vision of NGC 2804. Its different dimensions will be examined, analyzing its consequences, its influence on the global level and its future projection. Through a deep and exhaustive analysis, the aim is to contribute to the understanding and knowledge of NGC 2804, thus enriching the debate and reflection around this topic of undoubted importance.
| NGC 2804 | |
|---|---|
 The lenticular galaxy NGC 2804 | |
| Observation data (J2000 epoch) | |
| Constellation | Cancer |
| Right ascension | 09h 16m 50.0173s[1] |
| Declination | +20° 11′ 54.631″[1] |
| Redshift | 0.027662[1] |
| Heliocentric radial velocity | 8293 ± 3 km/s[1] |
| Distance | 412.8 ± 28.9 Mly (126.55 ± 8.86 Mpc)[1] |
| Apparent magnitude (V) | 12.8[1] |
| Characteristics | |
| Type | S0[1] |
| Size | ~226,100 ly (69.31 kpc) (estimated)[1] |
| Apparent size (V) | 1.4′ × 1.2′[1] |
| Other designations | |
| 2MASX J09165000+2011548, IC 2455, UGC 4901, MCG +03-24-028, PGC 26196, CGCG 091-047[1] | |
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).[1] It was discovered by British astronomer John Herschel on 24 February 1827.[2] 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.[2]
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.[3]
One supernova has been observed in NGC 2804: SN 2023ftr (type Ia, mag. 18.51) was discovered by the Zwicky Transient Facility on 16 April 2023.[4]
See also
References
- ^ a b c d e f g h i j k "Results for object NGC 2804". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 10 August 2024.
- ^ a b Seligman, Courtney. "NGC 2804". Celestial Atlas. Retrieved 10 August 2024.
- ^ "NGC 2804". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 16 December 2024.
- ^ "SN 2023ftr". Transient Name Server. IAU. Retrieved 16 December 2024.
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
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