HD 65216

HD 65216
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Carina
Right ascension 07h 53m 41.321s[1]
Declination −63° 38′ 50.37″[1]
Apparent magnitude (V) 7.98
Characteristics
Spectral type G5V
Astrometry
Proper motion (μ) RA: −122.93 ± 0.74[1] mas/yr
Dec.: 145.51 ± 0.70[1] mas/yr
Parallax (π)28.11 ± 0.59[1] mas
Distance116 ± 2 ly
(35.6 ± 0.7 pc)
Details
Mass0.95 ± 0.01[2] M☉
Radius0.864 ± 0.003[2] R☉
Luminosity0.716 ± 0.001[2] L☉
Surface gravity (log g)4.53 ± 0.01[2] cgs
Temperature5718 ± 8[2] K
Age1.7 ± 0.5[2] Gyr
Other designations
CD−63°359, HIP 38558, SAO 250002
Database references
SIMBADdata

HD 65216 is an 8th magnitude G-type main sequence star located approximately 34.3 parsecs (112 ly) away in the constellation of Carina. It is a Sun-like yellow dwarf, 8% less massive and somewhat less luminous. It cannot be seen without technical aid, but with binoculars or telescope it should be visible.

Planetary system

An extrasolar planet (designated as HD 65216 b) is known to orbit the star.

The HD 65216 planetary system[3]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b >1.21 MJ 1.37 613.1 ± 11.4 0.41 ± 0.06 — —

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. ↑ Mayor, M.; et al. (2004). "The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE". Astronomy and Astrophysics. 415 (1): 391–402. arXiv:astro-ph/0310316. Bibcode:2004A&A...415..391M. doi:10.1051/0004-6361:20034250.
  • "Notes for star HD 65216". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-22.

Coordinates: 07h 53m 41.3223s, −63° 38′ 50.363″


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