Iota Lupi
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Lupus |
| Right ascension | 14h 19m 24.22s[1] |
| Declination | −46° 03′ 29.1″[1] |
| Apparent magnitude (V) | 3.54[2] |
| Spectral type | B2.5IV[2] |
Iota Lupi is a star in the constellation Lupus. Located around 104 parsecs (340 ly) distant,[1] it is a blue subgiant of spectral type B2.5IV,[2] a star that has used up its core hydrogen and has begun to expand off the main-sequence. It is around 6.8 times as massive and 2082 times as luminous as the Sun, with a surface temperature of 19525 K.[3] Classified as a Beta Cephei variable, it varies between magnitudes 3.54 and 3.55.[4]
References
- 1 2 3 van Leeuwen, F. (November 2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752
. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. - 1 2 3 "Iota Lupi". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 14 July 2015.
- ↑ Hohle, M. M.; Neuhäuser, R.; Schutz, B. F. (April 2010), "Masses and luminosities of O- and B-type stars and red supergiants", Astronomische Nachrichten, 331 (4): 349, arXiv:1003.2335, Bibcode:2010AN....331..349H, doi:10.1002/asna.200911355
- ↑ European Space Agency (1997). The HIPPARCOS and TYCHO catalogues. Astrometric and photometric star catalogues derived from the ESA HIPPARCOS Space Astrometry Mission. 1200. Netherlands: Noordwijk. Bibcode:1997ESASP1200.....E. ISBN 9290923997.
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