HD 96167
HD 96167 is a binary star located approximately 280 light years away in the constellation of Crater.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Crater |
| Right ascension | 11h 05m 15.0688s[1] |
| Declination | –10° 17′ 28.6947″[1] |
| Apparent magnitude (V) | 8.09 |
| Characteristics | |
| Spectral type | G5IV |
| B−V color index | 0.68 |
| Variable type | none |
| Astrometry | |
| Proper motion (μ) | RA: −50.494±0.081[1] mas/yr Dec.: −9.496±0.072[1] mas/yr |
| Parallax (π) | 11.6947 ± 0.0565[1] mas |
| Distance | 279 ± 1 ly (85.5 ± 0.4 pc) |
| Absolute magnitude (MV) | 3.47 |
| Orbit | |
| Primary | HD 96167 A |
| Companion | HD 96167 BC |
| Semi-major axis (a) | 5.285" (506 AU[2]) |
| Details | |
| Mass | 1.31 ± 0.09 M☉ |
| Radius | 1.86 ± 0.07 R☉ |
| Luminosity | 3.44 L☉ |
| Surface gravity (log g) | 4.11 cgs |
| Temperature | 5770 ± 70 K |
| Metallicity | 0.34 ± 0.06 |
| Age | 3.8 ± 1 years |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
Primary HD 96167 A is an 8th magnitude G-type subgiant star It is larger, brighter and more massive than our Sun. The star is metal rich and around 3.8 ± 1 Gyr old.
The faint stellar companion was detected in 2014 at the projected separation 506 AU, and existence of additional stellar companions was ruled out at projected distances from 51 to 740 astronomical units.[2]
Planetary system
In 2009 it was found that primary star HD 96167 A is orbited by a planet.[4]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥0.71±0.18 MJ | 1.332±0.092 | 498.1±0.81 | 0.681±0.033 | — | — |
See also
- List of extrasolar planets
References
- Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- Mugrauer, M.; Ginski, C. (12 May 2015). "High-contrast imaging search for stellar and substellar companions of exoplanet host stars". Monthly Notices of the Royal Astronomical Society. 450 (3): 3127–3136. doi:10.1093/mnras/stv771. Retrieved 19 June 2020.
- "HD 96167". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-09-21.
- Peek, John Asher; et al. (2009). "Old, rich, and eccentric: two jovian planets orbiting evolved metal-rich stars". Publications of the Astronomical Society of the Pacific. 121 (880): 613–620. arXiv:0904.2786. Bibcode:2009PASP..121..613P. doi:10.1086/599862.
- Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5. S2CID 119243619.
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