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NGC 3430

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Galaxy in the constellation Leo Minor
NGC 3430
The barred spiral galaxy NGC 3430, imaged by the Hubble Space Telescope.
Observation data (J2000 epoch)
ConstellationLeo Minor
Right ascension10 52 11.3833
Declination+32° 57′ 01.358″
Redshift0.005290
Heliocentric radial velocity1586 ± 1 km/s
Distance89.9 ± 6.4 Mly (27.57 ± 1.95 Mpc)
Group or clusterNGC 3396 Group (LGG 218)
Apparent magnitude (V)11.6
Characteristics
TypeSAB(rs)c
Size~112,500 ly (34.50 kpc) (estimated)
Apparent size (V)4.1' x 2.2'
Other designations
IRAS 10494+3312, 2MASX J10521141+3257015, UGC 5982, MCG +06-24-026, PGC 32614

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 89.9 ± 6.4 Mly (27.57 ± 1.95 Mpc). In addition, 22 non-redshift measurements give a distance of 85.97 ± 3.77 Mly (26.359 ± 1.157 Mpc). 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. Moreover, it is also a Wolf-Rayet galaxy, with star-forming regions and forms a pair with NGC 3424, a nearby starburst galaxy. According to a 1997 study presented by researchers, these galaxies are clearly showing signs of tidal interaction.

NGC 3396 Group

NGC 3430 is a member of the NGC 3396 group (also known as LGG 218). This group that includes at least 11 galaxies: NGC 3381, NGC 3395, NGC 3396, NGC 3424, NGC 3430, NGC 3442, IC 2604, UGC 5898, PGC 32631, UGC 5934, and UGC 5990.

Supernovae

Two supernovae have been observed in NGC 3936:

  • SN 2004ez (type II, mag. 17.3) was discovered by Kōichi Itagaki on 15 October 2004.
  • PSN J10520833+3256394 (type IIb, mag. 17.8) was discovered by Kōichi Itagaki on 27 August 2015.

See also

References

  1. ^ "Results for object NGC 3430". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 23 July 2024.
  2. "Distance Results for NGC 3430". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 13 December 2024.
  3. Seligman, Courtney. "New General Catalogue Objects: NGC 3430". Celestial Atlas. Retrieved 13 December 2024.
  4. information@eso.org. "An island universe". www.esahubble.org. Retrieved 2024-07-24.
  5. Keel, William C. (1983-01-01). "Wolf-Rayet Stars in NGC 5430". IUE Proposal: 1472. Bibcode:1983iue..prop.1472K.
  6. 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.
  7. 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.
  8. Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G.
  9. "SN 2004ez". Transient Name Server. IAU. Retrieved 13 December 2024.
  10. 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.
  11. Cao, Y.; Kulkarni, S. R.; Cook, D.; Vreeswijk, P. (2015). "IPTF independent discovery and classification of PSN J10520833+3256394". The Astronomer's Telegram. 8428: 1. Bibcode:2015ATel.8428....1C.

External links

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