NGC 3430 is a barred spiral galaxy in the constellation of Leo Minor. Its velocity with respect to the cosmic microwave background is 1,869 ± 20 km/s, which corresponds to a Hubble distance of 27.6 ± 2.0 Mpc (∼90 million light-years).[1] It was discovered by German-British astronomer William Herschel on 7 December 1785.
| NGC 3430 | |
|---|---|
 The barred spiral galaxy NGC 3430, imaged by the Hubble Space Telescope. | |
| Observation data (J2000 epoch) | |
| Constellation | Leo Minor |
| Right ascension | 10h 52m 11.4036s[1] |
| Declination | 32° 57′ 01.557″[1] |
| Redshift | 0.005290[1] |
| Heliocentric radial velocity | 1586 ± 1 km/s[1] |
| Distance | 89.9 ± 6.4 Mly (27.57 ± 1.95 Mpc)[1] |
| Apparent magnitude (V) | 11.6[1] |
| Characteristics | |
| Type | SAB(rs)c[1] |
| Size | ~112,500 ly (34.50 kpc) (estimated)[1] |
| Apparent size (V) | 4.1' x 2.2'[1] |
| Other designations | |
| IRAS 10494+3312, 2MASX J10521141+3257015, UGC 5982, MCG +06-24-026, PGC 32614[1] | |
NGC 3430 is classified as a well-known example of an SAc spiral galaxy with no central bar structure but has spiral arms found open and clear-defined.[2] Moreover, it is also a Wolf-Rayet galaxy, with star-forming regions[3] and forms a pair with NGC 3424, a nearby starburst galaxy.[4] According to a 1997 study presented by researchers, these galaxies are clearly showing signs of tidal interaction.[5]
Two supernovae have been observed in NGC 3936: SN 2004ez (type II, mag. 17.3),[6][7] and PSN J10520833+3256394 (type IIb, mag. 17.8).[8]
See also
editReferences
edit- ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for NGC 3430. Retrieved 23 July 2024.
- ^ information@eso.org. "An island universe". www.esahubble.org. Retrieved 2024-07-24.
- ^ Keel, William C. (1983-01-01). "Wolf-Rayet Stars in NGC 5430". IUE Proposal: 1472. Bibcode:1983iue..prop.1472K.
- ^ Jaiswal, S.; Omar, A. (2016-06-07). "Hα imaging survey of Wolf–Rayet galaxies: morphologies and star formation rates". Monthly Notices of the Royal Astronomical Society. 462 (1): 92–114. arXiv:1606.02706. doi:10.1093/mnras/stw1333. ISSN 0035-8711.
- ^ Nordgren, Tyler E.; Chengalur, Jayaram N.; Salpeter, E. E.; Terzian, Yervant (1997-07-01). "Close Galaxy pairs in Medium Density Regions: The Northern Sky". The Astronomical Journal. 114: 77–93. Bibcode:1997AJ....114...77N. doi:10.1086/118454. ISSN 0004-6256.
- ^ Transient Name Server entry for SN 2004ez. Retrieved 23 July 2024.
- ^ Nakano, S.; Itagaki, K.; Kadota, K. (2004-10-01). "Supernova 2004ez in NGC 3430". International Astronomical Union Circular (8419): 2. Bibcode:2004IAUC.8419....2N. ISSN 0081-0304.
- ^ The Astronomer's Telegram: iPTF independent discovery and classification of PSN J10520833+3256394. Retrieved 23 July 2024.
External links
editMedia related to NGC 3430 at Wikimedia Commons
- NGC 3430 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images