Astronomy:WASP-23
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WASP-23 is a K1V-type main sequence star located 671 light-years from Earth in the constellation of Puppis. It has a mass of 0.84 solar masses and a radius of 0.88 solar radii. It is around 6.2 billion years old and has an effective temperature of 5046 Kelvin.[1]
Planetary system
There is only one known exoplanet orbiting this star named WASP-23b that was discovered by the transit method in the year 2010 by Triaud et al. It is a hot Jupiter with similar mass and radius to Jupiter.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.879+0.095 −0.10 MJ |
0.0370+0.0019 −0.0022 |
2.9444300(11) | <0.065 | 88.39+0.79 −0.45° |
0.962+0.047 −0.056 RJ |
References
- ↑ "WASP-23 | NASA Exoplanet Archive". https://exoplanetarchive.ipac.caltech.edu/overview/WASP-23.
- ↑ Triaud, A. H. M. J.; Queloz, D.; Hellier, C.; Gillon, M.; Smalley, B.; Hebb, L.; Cameron, A. Collier; Anderson, D. et al. (2011-07-01). "WASP-23b: a transiting hot Jupiter around a K dwarf and its Rossiter-McLaughlin effect" (in en). Astronomy & Astrophysics 531: A24. doi:10.1051/0004-6361/201016367. ISSN 0004-6361. Bibcode: 2011A&A...531A..24T. https://www.aanda.org/articles/aa/abs/2011/07/aa16367-10/aa16367-10.html.
- ↑ Bonomo, A. S. et al. (June 2017). "The GAPS Programme with HARPS-N at TNG. XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy & Astrophysics 602: A107. doi:10.1051/0004-6361/201629882. Bibcode: 2017A&A...602A.107B.
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