NGC 254
In this article, we will explore the fascinating world of NGC 254 and everything that this topic entails. From its impact on society to its implications on daily life, NGC 254 has been the subject of interest and debate for years. Throughout the next few lines, we will analyze its meaning, its different perspectives and its relevance in today's world. Whether NGC 254 is a person, a historical event, an abstract concept, or anything else, we're sure there's a lot to learn and reflect on. Join us on this journey of discovery and reflection about NGC 254.
| NGC 254 | |
|---|---|
 DECam image of NGC 254 | |
| Observation data (J2000 epoch) | |
| Constellation | Sculptor |
| Right ascension | 00h 47m 27.595s[1] |
| Declination | −31° 25′ 18.11″[1] |
| Redshift | 0.005434[2] |
| Heliocentric radial velocity | 1629[2] |
| Distance | 55.8 Mly (17.10 Mpc)[2] |
| Apparent magnitude (V) | 11.82[1] |
| Apparent magnitude (B) | 11.62[1] |
| Characteristics | |
| Type | (R)SA(rl)0+[3] |
| Apparent size (V) | 2.6′ × 1.7′[4] |
| Other designations | |
| MCG-05-03-005, PGC 2778 | |
NGC 254 is a lenticular galaxy located in the constellation Sculptor. It was discovered by John Herschel in 1834.[4] It is in a galaxy group with NGC 134.[3]
NGC 254 is an example of a ring galaxy, a galaxy with a ring,[3] and in this case, no central bar. Across the entire galaxy disk, there is a disk of ionized gas rotating in the direction opposite the stellar disk's rotation.[3] This situation may have arose when a retrograde-orbiting satellite galaxy accreted onto the galaxy itself, some 1 billion years ago.[3]
See also
References
- ^ a b c d "NGC 254". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 12 February 2017.
- ^ a b c "NASA/IPAC Extragalactic Database". Results for NGC 254. Retrieved 2 September 2016.
- ^ a b c d e Katkov, Ivan Yu.; Kniazev, Alexei Yu.; Sil'Chenko, Olga K.; Gasymov, Damir (2022). "Star formation in outer rings of S0 galaxies. IV. NGC 254: A double-ringed S0 with gas counter-rotation". Astronomy & Astrophysics. 658: A154. arXiv:2112.03289. Bibcode:2022A&A...658A.154K. doi:10.1051/0004-6361/202141934. S2CID 245728982.
- ^ a b "New General Catalog Objects: NGC 250 - 299". cseligman.com. Retrieved 12 February 2017.
External links
Media related to NGC 254 at Wikimedia Commons
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