Astronomy:IC 755
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(Redirected from Astronomy:NGC 4019)
Short description: Galaxy in the constellation Coma Berenices
| IC 755 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 12h 01m 10.382s[2] |
| Declination | +14° 06′ 16.25″[2] |
| Redshift | 0.00511[3] |
| Helio radial velocity | 1528 km/s[3] |
| Distance | 60.3 ± 4.9 Mly (18.5 ± 1.5 Mpc)[4] |
| Group or cluster | Virgo Cluster[5] |
| Apparent magnitude (B) | 13.9[3] |
| Characteristics | |
| Type | SBb? edge-on[6] |
| Other designations | |
| NGC 4019, UGC 7001, MCG+02-31-014, PGC 37912[3] | |
IC 755, also known as NGC 4019,[3] is a barred spiral galaxy.[6] It lies about 60 million light-years away (18 Megaparsecs)[4] in the northern constellation of Coma Berenices. It is a member of the Virgo Cluster.[5]
In 1999 a star within IC 755 was seen to explode as a supernova and named SN 1999an.[4] Supernovae like SN 1999an are classified as Type IIs[4] and they are dramatic events that mark the end of the lives of massive stars. The supernova was discovered by the Beijing Astronomical Observatory Supernova Survey.
References
- ↑ "Edge-on Galaxy Hosts Supernova Explosion". Picture of the Week. ESA/Hubble. http://www.spacetelescope.org/images/potw1129a/.
- ↑ 2.0 2.1 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W. et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal 131 (2): 1163–1183. doi:10.1086/498708. ISSN 0004-6256. Bibcode: 2006AJ....131.1163S.
- ↑ 3.0 3.1 3.2 3.3 3.4 "IC 755". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=IC+755.
- ↑ 4.0 4.1 4.2 4.3 Smartt, S. J.; Eldridge, J. J.; Crockett, R. M.; Maund, J. R. (2009). "The death of massive stars - I. Observational constraints on the progenitors of Type II-P supernovae". Monthly Notices of the Royal Astronomical Society 395 (3): 1409–1437. doi:10.1111/j.1365-2966.2009.14506.x. Bibcode: 2009MNRAS.395.1409S.
- ↑ 5.0 5.1 Kim, Suk; Rey, Soo-Chang; Jerjen, Helmut; Lisker, Thorsten; Sung, Eon-Chang; Lee, Youngdae; Chung, Jiwon; Pak, Mina et al. (2014). "The Extended Virgo Cluster Catalog". The Astrophysical Journal Supplement Series 215 (2): 22. doi:10.1088/0067-0049/215/2/22. Bibcode: 2014ApJS..215...22K.
- ↑ 6.0 6.1 "Results for object NGC IC 755 (IC 755)". NASA/IPAC Extragalactic Database. California Institute of Technology. https://ned.ipac.caltech.edu/byname?objname=IC%20755&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1.
External links
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