Astronomy:WASP-28
WASP-28 is a F8V-type main sequence star located 1116 light-years from Earth in the constellation of Pisces. It has a mass of 0.9 solar masses and a radius of 1.08 solar radii.[1] It is an aged and cool star being around 5 billion years old and having a temperature at around 6100 Kelvin.[2]
Planetary system
The only known exoplanet orbiting around this star is WASP-28b, a highly irradiated and inflated hot Jupiter. It has a mass of 0.9 Jupiters and a radius of 1.3 Jupiters. It orbits at a distance of 0.044 AU taking about 3.4 days to complete an orbit around its star. The orbit has an eccentricity of 0.975 and an inclination of 88.61°.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.889±0.058 MJ | 0.0442±0.0010 | 3.40883495(15) | <0.075 | 88.514±0.090° | 1.219±0.028 RJ |
References
- ↑ "WASP-28 | NASA Exoplanet Archive". https://exoplanetarchive.ipac.caltech.edu/overview/WASP-28.
- ↑ 2.0 2.1 Anderson, D. R.; Cameron, A. Collier; Hellier, C.; Lendl, M.; Lister, T. A.; Maxted, P. F. L.; Queloz, D.; Smalley, B. et al. (2015-03-01). "WASP-20b and WASP-28b: a hot Saturn and a hot Jupiter in near-aligned orbits around solar-type stars" (in en). Astronomy & Astrophysics 575: A61. doi:10.1051/0004-6361/201423591. ISSN 0004-6361. Bibcode: 2015A&A...575A..61A. https://www.aanda.org/articles/aa/abs/2015/03/aa23591-14/aa23591-14.html.
- ↑ Močnik, T.; Hellier, C.; Anderson, D. R. (January 2020). "K2 Looks Toward WASP-28 and WASP-151". Publications of the Astronomical Society of the Pacific 132 (1007): 014401. doi:10.1088/1538-3873/ab5598. Bibcode: 2020PASP..132a4401M.
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