HD 52265 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 52265 | |
| Constellation | Monoceros | |
| Right ascension | (α) | 07h 00m 18.0363s |
| Declination | (δ) | –05° 22′ 01.783″ |
| Distance | 91.50 ly (28.07 pc) | |
| Spectral type | G0V | |
| Orbital elements | ||
| Semi-major axis | (a) | 0.504±0.029 AU |
| Periastron | (q) | 0.340 AU |
| Apastron | (Q) | 0.668 AU |
| Eccentricity | (e) | 0.325±0.065 |
| Orbital period | (P) | 119.290±0.086 d (0.326593 y) |
| Orbital speed | (υ) | 46.1 km/s |
| Inclination | (i) | 36° |
| Argument of periastron |
(ω) | 243±15° |
| Time of periastron | (T0) | 2,450,833.7±4.2 JD |
| Semi-amplitude | (K) | 42.1±3.1 m/s |
| Physical characteristics | ||
| Mass | (m) | 1.85 (assuming the planet is aligned to equator) MJ |
| Minimum mass | (m sin i) | 1.09±0.11 MJ |
| Discovery information | ||
| Discovery date | 22 April 2000 | |
| Discoverer(s) | Butler, Vogt, Marcy et al. | |
| Discovery method | Radial velocity | |
| Other detection methods | Astroseismology | |
| Discovery site |  United States | |
| Discovery status | Published | |
HD 52265 b is a gas giant exoplanet located approximately 92 light-years away in the constellation of Monoceros, orbiting the star HD 52265. The planet has a minimum mass slightly more than that of Jupiter. Mean distance between the planet and the star is half that of Earth from the Sun.[1] It was discovered by both the California and Carnegie Planet Search team and the Geneva Extrasolar Planet Search team independently of each other.[2][3] By studying the fluctuations of the brightness of a host star, the inclination of the planet was determined. This allowed to calculate its true mass, assuming that the planet is inclined to star's equator.[4]
References
- ↑ 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.
- ↑ Butler, R. Paul; et al. (2000). "Planetary Companions to the Metal-rich Stars BD -10°3166 and HD 52265". The Astrophysical Journal 545 (1): 504–511. Bibcode:2000ApJ...545..504B. doi:10.1086/317796.
- ↑ Naef, D.; et al. (2001). "The CORALIE survey for southern extrasolar planets V. 3 new extrasolar planets". Astronomy and Astrophysics 375 (1): 205–218. arXiv:astro-ph/0106255. Bibcode:2001A&A...375..205N. doi:10.1051/0004-6361:20010841.
- ↑ Wobbly, Sunlike Star Being Pulled by Giant Alien Planet, Charles Q. Choi
External links
- "Notes for planet HD 52265 b". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-22.
- "HD 52265". Exoplanets. Retrieved 2008-08-22.
Coordinates: 
07h 00m 18.0363s, −05° 22′ 01.783″
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