HD 52265

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
Distance94 ± 1 ly
(29.0 ± 0.3 pc)
Details
Mass1.21 ± 0.02[2] M☉
Radius1.27 ± 0.03[2] R☉
Luminosity2.08 ± 0.01[2] L☉
Surface gravity (log g)4.31 ± 0.03[2] cgs
Temperature6163 ± 41[2] K
Age2.6 ± 0.6[2] Gyr
Other designations
BD−05°1910, HIP 33719, SAO 134031, HR 2622
Database references
SIMBADdata

HD 52265 is a 6th-magnitude G-type main sequence star located approximately 94 light-years away in the constellation of Monoceros. It is 21% more massive than and more than 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]

The HD 52265 planetary system[6][7]
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. 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
  2. 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.
  3. ↑ 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.
  4. ↑ "Exoplanets Galore!" (Press release). Garching, Germany: European Southern Observatory. April 15, 2000. Retrieved December 30, 2012.
  5. ↑ 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.
  6. ↑ 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.
  7. ↑ Wobbly, Sunlike Star Being Pulled by Giant Alien Planet, Charles Q. Choi
  • "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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