HD 52265
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Monoceros |
| Right ascension | 07h 00m 18.036s[1] |
| Declination | −05° 22′ 01.78″[1] |
| Apparent magnitude (V) | 6.301 |
| Characteristics | |
| Spectral type | G0V |
| Astrometry | |
| Proper motion (μ) | RA: −116.13 ± 0.38[1] mas/yr Dec.: 80.29± 0.30[1] mas/yr |
| Parallax (π) | 34.53 ± 0.40[1] mas |
| Distance | 94 ± 1 ly (29.0 ± 0.3 pc) |
| Details | |
| Mass | 1.21 ± 0.02[2] M☉ |
| Radius | 1.27 ± 0.03[2] R☉ |
| Luminosity | 2.08 ± 0.01[2] L☉ |
| Surface gravity (log g) | 4.31 ± 0.03[2] cgs |
| Temperature | 6163 ± 41[2] K |
| Age | 2.6 ± 0.6[2] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 52265 is a 6th-magnitude G-type main sequence star located approximately 94 light-years away in the constellation of Monoceros. It is 18% more massive than and almost twice as luminous as the Sun. The age of the star is roughly 2.6 billion years.
Planetary system
In 2000 the California and Carnegie Planet Search team announced the discovery of an extrasolar planet orbiting the star.[3] It was independently discovered by the Geneva Extrasolar Planet Search team.[4][5]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 1.85 MJ | 0.504 ± 0.029 | 119.290 ± 0.086 | 0.325 ± 0.065 | 36° | — |
See also
References
- 1 2 3 4 5 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752
. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry - 1 2 3 4 5 6 Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. arXiv:1411.4302. Bibcode:2015A&A...575A..18B. doi:10.1051/0004-6361/201424951.
- ↑ 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.
- ↑ "Exoplanets Galore!" (Press release). Garching, Germany: European Southern Observatory. April 15, 2000. Retrieved December 30, 2012.
- ↑ 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.
- ↑ 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.
- ↑ Wobbly, Sunlike Star Being Pulled by Giant Alien Planet, Charles Q. Choi
External links
- "Notes for star HD 52265". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-22.
Coordinates: 
07h 00m 18.0363s, −05° 22′ 01.783″
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