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NGC 3430

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NGC 3430
The barred spiral galaxy NGC 3430, imaged by the Hubble Space Telescope.
Observation data (J2000 epoch)
ConstellationLeo
Right ascension10h 52m 11.4036s[1]
Declination32° 57′ 01.557″[1]
Redshift0.005290[1]
Heliocentric radial velocity1586 ± 1 km/s[1]
Distance89.9 ± 6.4 Mly (27.57 ± 1.95 Mpc)[1]
Apparent magnitude (V)11.6[1]
Characteristics
TypeSAB(rs)c[1]
Size~112,500 ly (34.50 kpc) (estimated)[1]
Apparent size (V)4.1' x 2.2'[1]
Other designations
PGC 32614, UGC 5982, MCG +06-24-026, 2MASX J10521141+3257015, IRAS 10494+3312[1]

NGC 3430 is a barred spiral galaxy in the constellation of Leo. 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 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-Raynet 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

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References

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  1. ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for NGC 3430. Retrieved 23 July 2024.
  2. ^ information@eso.org. "An island universe". www.esahubble.org. Retrieved 2024-07-24.
  3. ^ Keel, William C. (1983-01-01). "Wolf-Rayet Stars in NGC 5430". IUE Proposal: 1472.
  4. ^ 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. doi:10.1093/mnras/stw1333. ISSN 0035-8711.
  5. ^ 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. doi:10.1086/118454. ISSN 0004-6256.
  6. ^ Transient Name Server entry for SN 2004ez. Retrieved 23 July 2024.
  7. ^ Nakano, S.; Itagaki, K.; Kadota, K. (2004-10-01). "Supernova 2004ez in NGC 3430". International Astronomical Union Circular. 8419: 2. ISSN 0081-0304.
  8. ^ The Astronomer's Telegram: iPTF independent discovery and classification of PSN J10520833+3256394. Retrieved 23 July 2024.
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