AK Pyxidis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pyxis |
| Right ascension | 08h 48m 14.62631s[1] |
| Declination | −28° 38′ 19.6757″[1] |
| Apparent magnitude (V) | 6.09-6.51[2] |
| Characteristics | |
| Spectral type | M5III [2] |
| Variable type | semiregular variable[2] |
| Astrometry | |
| Proper motion (μ) | RA: -10.60 ± 0.29[1] mas/yr Dec.: −8.05 ± 0.29[1] mas/yr |
| Parallax (π) | 4.68 ± 0.41[1] mas |
| Distance | 700 ± 60 ly (210 ± 20 pc) |
| Details | |
| Luminosity | 1500[3] L☉ |
| Temperature | 3410 K[3] K |
| Other designations | |
AK Pyxidis is a semiregular variable star located in the constellation Pyxis. It varies between magnitudes 6.09 and 6.51,[2] pulsating to multiple periods simultaneously of 55.5, 57.9, 86.7, 162.9 and 232.6 days.[5] Located around 1228 light-years distant, it shines with a luminosity approximately 1500 times that of the Sun and has a surface temperature of 3410 K.[3]
References
- 1 2 3 4 5 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 4 Watson, Christopher (25 August 2009). "AK Pyxidis". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 29 July 2015.
- 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.
- ↑ "AK Pyxidis", SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), retrieved 5 September 2015
- ↑ Tabur, V.; Bedding, T.R. (2009). "Long-term photometry and periods for 261 nearby pulsating M giants". Monthly Notices of the Royal Astronomical Society 400 (4): 1945–61. arXiv:0908.3228. Bibcode:2009MNRAS.400.1945T. doi:10.1111/j.1365-2966.2009.15588.x.
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