HD 88133
HD 88133 is an 8th magnitude star in the constellation of Leo. It is classified as a yellow subgiant star (spectral type G5IV). It is slightly more massive than our Sun, cooler and more luminous. As a subgiant, it has left the main sequence and started to evolve towards red gianthood. Located at a distance of 240 light years from Earth it is not in our immediate neighbourhood and thus not visible to the unaided eye. With a small telescope it should be easily visible.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Leo |
| Right ascension | 10h 10m 07.6764s[1] |
| Declination | +18° 11′ 12.7322″[1] |
| Apparent magnitude (V) | 8.06 |
| Characteristics | |
| Spectral type | G5IV |
| Astrometry | |
| Proper motion (μ) | RA: −11.076±0.119[1] mas/yr Dec.: −265.160±0.085[1] mas/yr |
| Parallax (π) | 13.5561 ± 0.0557[1] mas |
| Distance | 240.6 ± 1.0 ly (73.8 ± 0.3 pc) |
| Details | |
| Other designations | |
| Database references | |
| SIMBAD | data |
In 2004 a planet was found to orbit the star.[3]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥0.282±0.046 MJ | 0.0479±0.0032 | 3.414887±0.000045 | 0 (fixed) | — | — |
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.
- "HD 88133". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-12-28.
- Fischer, Debra A.; et al. (2005). "The N2K Consortium. I. A Hot Saturn Planet Orbiting HD 88133". The Astrophysical Journal. 620 (1): 481–486. Bibcode:2005ApJ...620..481F. doi:10.1086/426810.
- 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.
External links
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