Kappa Pyxidis
Appearance
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Pyxis |
Right ascension | 09h 08m 02.88045s[1] |
Declination | –25° 51′ 30.7303″[1] |
Apparent magnitude (V) | 4.62 |
Characteristics | |
Spectral type | K4/K5III |
Astrometry | |
Radial velocity (Rv) | -44.7 ± 2 km/s |
Proper motion (μ) | RA: 35.65 ± 0.41[1] mas/yr Dec.: 0.30 ± 0.27[1] mas/yr |
Parallax (π) | 5.82 ± 0.55 mas[1] |
Distance | 560 ± 50 ly (170 ± 20 pc) |
Details | |
Luminosity | 965[2] L☉ |
Temperature | 4031 K[2] K |
Other designations | |
Kappa Pyxidis (Kappa Pyx, κ Pyxidis, κ Pyx) is multiple star system in constellation of Pyxis, with an apparent magnitude of +4.62. The primary component is an orange K-type giant. Approximately 500 light years from Earth, it shines with a luminosity approximately 965 times that of the Sun and has a surface temperature of 4031 K.[2] A magnitude 10 star is 2.1 arcseconds distant from it.[3]
Kappa Pyxidis is moving through the Galaxy at a speed of 53.7 km/s relative to the Sun. It will come closest to the Sun 2.6 million years from now when it will brighten to magnitude 3.34 from a distance of 308 light years.[4]
References
- ^ a b c d e 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
- ^ a b c 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.
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: CS1 maint: unflagged free DOI (link) - ^ Privett, Grant; Jones, Kevin (2013). The Constellation Observing Atlas. New York, New York: Springer Science & Business Media. p. 168. ISBN 9781461476481.
- ^ Kappa Pyxidis (HIP 44824)