HD 52265

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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
BD−05°1910, HIP 33719, SAO 134031, HR 2622
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 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[edit]

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[edit]

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b c d e f Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. arXiv:1411.4302Freely accessible. 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/0106255Freely accessible. 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/0607493Freely accessible. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. 
  7. ^ Wobbly, Sunlike Star Being Pulled by Giant Alien Planet, Charles Q. Choi

External links[edit]

Coordinates: Sky map 07h 00m 18.0363s, −05° 22′ 01.783″