Astronomy:AK Pyxidis
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Short description: Star in the constellation Pyxis
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Pyxis |
| Right ascension | 08h 48m 14.62631s[2] |
| Declination | −28° 38′ 19.6757″[2] |
| Apparent magnitude (V) | 6.09-6.51[3] |
| Characteristics | |
| Spectral type | M5III [3] |
| Variable type | semiregular variable[3] |
| Astrometry | |
| Proper motion (μ) | RA: -10.60 ± 0.29[2] mas/yr Dec.: −8.05 ± 0.29[2] mas/yr |
| Parallax (π) | 4.68 ± 0.41[2] mas |
| Distance | 700 ± 60 ly (210 ± 20 pc) |
| Details | |
| Luminosity | 1500[4] L☉ |
| Temperature | 3410 K[4] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
AK Pyxidis is a semiregular variable star located in the constellation Pyxis. It varies between magnitudes 6.09 and 6.51,[3] pulsating to multiple periods simultaneously of 55.5, 57.9, 86.7, 162.9 and 232.6 days.[1] 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.[4]
References
- ↑ 1.0 1.1 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. doi:10.1111/j.1365-2966.2009.15588.x. Bibcode: 2009MNRAS.400.1945T.
- ↑ 2.0 2.1 2.2 2.3 2.4 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, doi:10.1051/0004-6361:20078357, Bibcode: 2007A&A...474..653V
- ↑ 3.0 3.1 3.2 3.3 Watson, Christopher (25 August 2009). "AK Pyxidis". The International Variable Star Index. American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=27245. Retrieved 29 July 2015.
- ↑ 4.0 4.1 4.2 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. doi:10.1111/j.1365-2966.2012.21873.x. Bibcode: 2012MNRAS.427..343M.
- ↑ "V* AK Pyx". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=V%2A+AK+Pyx.
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