HR 4339
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Hydra |
Right ascension | 11h 09m 53.39311s[1] |
Declination | –32° 22′ 03.1048″[1] |
Apparent magnitude (V) | 5.779 |
Characteristics | |
Spectral type | A2V |
Astrometry | |
Radial velocity (Rv) | 1.30 ± 0.5 km/s |
Proper motion (μ) | RA: 16.90 ± 0.35[1] mas/yr Dec.: -29.74 ± 0.30[1] mas/yr |
Parallax (π) | 8.27 ± 0.38[1] mas |
Distance | 390 ± 20 ly (121 ± 6 pc) |
Details | |
Luminosity | 59[2] L☉ |
Temperature | 8886 K[2] K |
Other designations | |
Database references | |
SIMBAD | data |
HR 4339, once known as Beta Antliae, is astar in the constellation Hydra. Located around 390 light-years distant, it shines with a luminosity approximately 60 times that of the Sun and has a surface temperature of 8886 K.[2]
This star was designated as Beta Antliae by Lacaille, and Gould intended to keep it in that constellation. However, the delineating of constellation boundaries in 1930 saw it transferred to Hydra.[3]
References
- 1 2 3 4 5 van Leeuwen, F. (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.Vizier catalog entry
- 1 2 3 McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society 427 (1): 343–57. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x.
- ↑ Wagman, Morton (2003). Lost Stars: Lost, Missing and Troublesome Stars from the Catalogues of Johannes Bayer, Nicholas Louis de Lacaille, John Flamsteed, and Sundry Others. Blacksburg, VA: The McDonald & Woodward Publishing Company. p. 29. ISBN 978-0-939923-78-6.
|
This article is issued from Wikipedia - version of the Thursday, August 20, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.