Astronomy:NGC 3430
| NGC 3430 | |
|---|---|
 NGC 3430 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Leo Minor |
| Right ascension | 10h 52m 11.3833s[1] |
| Declination | +32° 57′ 01.358″[1] |
| Redshift | 0.005290[1] |
| Helio radial velocity | 1586 ± 1 km/s[1] |
| Distance | 89.9 ± 6.4 Mly (27.57 ± 1.95 Mpc)[1] |
| Group or cluster | NGC 3396 Group (LGG 218) |
| 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′ × 2.2′[1] |
| Other designations | |
| IRAS 10494+3312, UGC 5982, MCG+06-24-026, PGC 32614[1] | |
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).[1] In addition, 22 non-redshift measurements give a distance of 85.97 ± 3.77 Mly (26.359 ± 1.157 Mpc).[2] It was discovered by German-British astronomer William Herschel on 7 December 1785.[3]
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.[4] Moreover, it is also a Wolf-Rayet galaxy, with star-forming regions[5] and forms a pair with NGC 3424, a nearby starburst galaxy.[6] According to a 1997 study presented by researchers, these galaxies are clearly showing signs of tidal interaction.[7]
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.[8]
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.[9][10]
- PSN J10520833+3256394 (Type IIb, mag. 17.8) was discovered by Kōichi Itagaki on 27 August 2015.[11]
See also
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 3430". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=ngc+3430.
- ↑ "Distance Results for NGC 3430". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+3430.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 3430". https://cseligman.com/text/atlas/ngc34.htm#3430.
- ↑ information@eso.org. "An island universe" (in en). https://www.esahubble.org/images/potw2430a/.
- ↑ Keel, William C. (1983-01-01). "Wolf-Rayet Stars in NGC 5430". IUE Proposal: 1472. Bibcode: 1983iue..prop.1472K. https://ui.adsabs.harvard.edu/abs/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. 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. doi:10.1086/118454. ISSN 0004-6256. Bibcode: 1997AJ....114...77N. https://ui.adsabs.harvard.edu/abs/1997AJ....114...77N.
- ↑ 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.
- ↑ "SN 2004ez". IAU. https://www.wis-tns.org/object/2004ez.
- ↑ Nakano, S.; Itagaki, K.; Kadota, K. (2004-10-01). "Supernova 2004ez in NGC 3430". International Astronomical Union Circular (8419): 2. ISSN 0081-0304. Bibcode: 2004IAUC.8419....2N. http://www.cbat.eps.harvard.edu/iauc/08400/08419.html#Item2.
- ↑ 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. https://www.astronomerstelegram.org/?read=8428.
External links
- NGC 3430 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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