WASP-95
(Redirected from WASP-95b)
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Grus |
| Right ascension | 22h 29m 49.73551s[1] |
| Declination | −48° 00′ 11.0487″[1] |
| Apparent magnitude (V) | 10.09[2] |
| Characteristics | |
| Spectral type | G2[2] |
| Astrometry | |
| Radial velocity (Rv) | 6.30±0.16[1] km/s |
| Proper motion (μ) | RA: 92.151(11) mas/yr[1] Dec.: −6.905(14) mas/yr[1] |
| Parallax (π) | 7.2379 ± 0.0157 mas[1] |
| Distance | 450.6 ± 1.0 ly (138.2 ± 0.3 pc) |
| Details[3] | |
| Mass | 1.110±0.090 M☉ |
| Radius | 1.130+0.080 −0.040 R☉ |
| Temperature | 5830±140 K |
| Metallicity [Fe/H] | 0.14±0.16 dex |
| Rotational velocity (v sin i) | 3.10±0.60 km/s |
| Age | 5.0+2.8 −1.8 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
WASP-95 is a star 451 light-years (138 parsecs) away in the constellation Grus. With an apparent magnitude of 10.1, it is not visible to the naked eye. Its spectral type of G2 means it is a yellow sunlike star.
Planetary system
[edit]In 2013, a planet was discovered around WASP-95. The planet, WASP-95b, is a hot Jupiter about 10% more massive than Jupiter, and completes an orbit round its star every two days. It was discovered by its transit of the star in 2013.[4] The planet's equilibrium temperature is 1692.6±40.4 K.[5]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 1.206+0.065 −0.067 MJ |
0.0312±0.0022 | 2.18466560(11) | <0.018[3] | 85.9411+0.0065 −0.0066° |
1.098±0.088 RJ |
References
[edit]- ^ a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c "WASP-95". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 30 December 2016.
- ^ a b Bonomo, A. S.; Desidera, 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. arXiv:1704.00373. Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882. S2CID 118923163.
- ^ Hellier, Coel; Anderson, D. R.; Collier Cameron, A.; Delrez, L.; et al. (2013). "Transiting Hot Jupiters from WASP-South, Euler and TRAPPIST: WASP-95b to WASP-101b". Monthly Notices of the Royal Astronomical Society. 440 (3): 1982–1992. arXiv:1310.5630. Bibcode:2014MNRAS.440.1982H. doi:10.1093/mnras/stu410. S2CID 54977201.
- ^ a b Saha, Suman; Sengupta, Sujan (2021), "Critical Analysis of Tess Transit Photometric Data: Improved Physical Properties for Five Exoplanets", The Astronomical Journal, 162 (5): 221, arXiv:2109.11366, Bibcode:2021AJ....162..221S, doi:10.3847/1538-3881/ac294d, S2CID 237605336
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