| NGC 4103 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Right ascension | 12h 00m 39s[1] |
| Declination | −61° 55′ 00″[1] |
| Distance | 5,320 ly (1,632 pc[2]) |
| Apparent magnitude (V) | 7.4 [1] |
| Apparent dimensions (V) | 12'[3] |
| Physical characteristics | |
| Mass | 1,180[4] M☉ |
| Estimated age | 25 million years[2] |
| Other designations | Collinder 252, Melotte 109 |
| Associations | |
| Constellation | Crux |
NGC 4103 is an open cluster in the constellation Crux. It was discovered by James Dunlop in 1826. It is located approximately 5,000 light years away from Earth, in the Carina-Sagittarius arm.[5]
- ^ a b c "NGC 4103". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-08-19.
- ^ a b WEBDA page for open cluster NGC 4103
- ^ Kharchenko, N. V.; Piskunov, A. E.; Schilbach, E.; Röser, S.; Scholz, R.-D. (3 October 2013). "Global survey of star clusters in the Milky Way". Astronomy & Astrophysics. 558: A53. arXiv:1308.5822. Bibcode:2013A&A...558A..53K. doi:10.1051/0004-6361/201322302. S2CID 118548517.
- ^ Piskunov, A. E.; Schilbach, E.; Kharchenko, N. V.; Röser, S.; Scholz, R.-D. (6 November 2007). "Tidal radii and masses of open clusters". Astronomy & Astrophysics. 477 (1): 165–172. Bibcode:2008A&A...477..165P. doi:10.1051/0004-6361:20078525.
- ^ Carraro, Giovanni; Turner, David G.; Majaess, Daniel J.; Baume, Gustavo L.; Gamen, Roberto; Lera, José A. Molina (13 March 2017). "Extinction in the Star Cluster SAI 113 and Galactic Structure in Carina". The Astronomical Journal. 153 (4): 156. arXiv:1701.08319. Bibcode:2017AJ....153..156C. doi:10.3847/1538-3881/aa5c3a. S2CID 119494346.