HD 92788
HD 92788 is a G-type star located approximately 113 light-years away in the constellation of Sextans. It is more massive and slightly smaller than the Sun with high metallicity.
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Sextans |
Right ascension | 10h 42m 48.5276s[1] |
Declination | −02° 11′ 01.524″[1] |
Apparent magnitude (V) | 7.30[2] |
Characteristics | |
Spectral type | G6V[2] |
B−V color index | 0.694[3] |
Astrometry | |
Proper motion (μ) | RA: −14.653±0.066[1] mas/yr Dec.: −223.080±0.042[1] mas/yr |
Parallax (π) | 28.87 ± 0.25[1] mas |
Distance | 113.0 ± 1.0 ly (34.6 ± 0.3 pc) |
Details[3] | |
Mass | 1.06 M☉ |
Metallicity [Fe/H] | 0.22±0.05 dex |
Rotation | 31.7 days |
Other designations | |
Database references | |
SIMBAD | data |
Exoplanet Archive | data |
Planetary system
An extrasolar planet was discovered orbiting this star in 2001.[3]
The star rotates at an inclination of 8+14
−8 degrees relative to Earth.[4] It is probable that this planet shares that inclination.[5][6]
Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | >3.67 ± 0.30 MJ | 0.965 ± 0.56 | 325.81 ± 0.26 | 0.334 ± 0.011 | — | — |
c | 3.76± 0.16 MJ | 10.50+2.90 −0.55[8] |
11611.3+5055 −906 |
0.46+0.12 −0.03 |
— | — |
See also
- List of extrasolar planets
References
- Brown, A. G. A; et al. (2016). "Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties". Astronomy and Astrophysics. 595. A2. arXiv:1609.04172. Bibcode:2016A&A...595A...2G. doi:10.1051/0004-6361/201629512.Gaia Data Release 1 catalog entry
- "HD 92788". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-04-02.
- Fischer, Debra A.; et al. (2001). "Planetary Companions to HD 12661, HD 92788, and HD 38529 and Variations in Keplerian Residuals of Extrasolar Planets". The Astrophysical Journal. 551 (2): 1107–1118. Bibcode:2001ApJ...551.1107F. doi:10.1086/320224.
- Simpson, E. K.; et al. (November 2010), "Rotation periods of exoplanet host stars", Monthly Notices of the Royal Astronomical Society, 408 (3): 1666–1679, arXiv:1006.4121, Bibcode:2010MNRAS.408.1666S, doi:10.1111/j.1365-2966.2010.17230.x
- "hd_92788_b". Extrasolar Planet Encyclopaedia. Retrieved November 12, 2012.
- Roberto Sanchis-Ojeda; Josh N. Winn; Daniel C. Fabrycky (2012). "Starspots and spin-orbit alignment for Kepler cool host stars". Astronomische Nachrichten. 334 (1–2): 180–183. arXiv:1211.2002. Bibcode:2013AN....334..180S. doi:10.1002/asna.201211765.
- Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701.
- Extrasolar planet encyclopedia
External links
- "Notes for star HD 92788". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-30.
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