HD 32963

HD 32963
Observation data
Epoch J2000      Equinox ICRS
Constellation Taurus
Right ascension 05h 07m 55.76408s
Declination +26° 19′ 40.6750″
Apparent magnitude (V) 7.60
Characteristics
Spectral type G3V or G5IV
B−V color index 0.6
Astrometry
Radial velocity (Rv)−62.49±0.12 km/s
Proper motion (μ) RA: −69.896 mas/yr
Dec.: −66.118 mas/yr
Parallax (π)26.1310±0.0238 mas
Distance124.8 ± 0.1 ly
(38.27 ± 0.03 pc)
Absolute magnitude (MV)+4.80
Details
Mass1.03±0.05 M☉
Radius1.1 R☉
Luminosity1.1 L☉
Surface gravity (log g)4.41±0.03 cgs
Temperature5,727±32 K
Metallicity [Fe/H]0.11±0.05 dex
Rotational velocity (v sin i)1.10 km/s
Age4.99+6.71
−3.55 Gyr
Other designations
BD+26 789, HD 32963, HIP 23884, SAO 76970, PPM 94086
Database references
SIMBADdata
Exoplanet Archivedata

HD 32963 is a G-type main sequence star located 124 light years away from Earth in the constellation of Taurus. It has a mass of 0.94 solar masses. It is 4.99 billion years old. It has one exoplanet orbiting it which was discovered using radial velocity. The exoplanet that has been named HD 32963 b is a Jupiter analogue due to its similar characteristics to the planet Jupiter such as orbit and size.

Planetary system

It has one currently discovered exoplanet orbiting it, named HD 32963 b. The planet orbits the star at a distance of 3.41 AU with an eccentricity of 0.07. It takes 2372 days to orbit the parent star. It has a minimum mass of 0.7 Jupiter masses; in 2023 its inclination was measured by astrometry, showing it to have a true mass about twice that of Jupiter. The orbit and size of HD 32963 b is similar to the planet Jupiter. This makes it a Jupiter analogue planet.

The HD 32963 planetary system
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(years)		 Eccentricity Inclination
(°)		 Radius
b 2.07+0.83
−0.64 MJ		 3.409+0.063
−0.064		 6.483+0.064
−0.061		 0.099±0.028 19.3+9.2
−5.7 or 160.7+5.7
−9.2		 —

References

  1. 1 2 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. XHIP record for this object at VizieR.
  2. 1 2 3 4 5 6 7 8 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. 1 2 3 4 5 6 7 8 Rowan, Dominick; Meschiari, Stefano; Laughlin, Gregory; Vogt, Steven S.; Butler, R. Paul; Burt, Jennifer; Wang, Songhu; Holden, Brad; Hanson, Russell; Arriagada, Pamela; Keiser, Sandy; Teske, Johanna; Diaz, Matias (Jan 2016). "The Lick-Carnegie Exoplanet Survey: HD 32963—A New Jupiter Analog Orbiting a Sun-like Star". The Astrophysical Journal. 817 (2): 104. arXiv:1512.00417. Bibcode:2016ApJ...817..104R. doi:10.3847/0004-637X/817/2/104. ISSN 0004-637X.
  4. ↑ Grenier, S.; Baylac, M.-O.; et al. (June 1999). "Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS". Astronomy and Astrophysics Supplement. 137: 451–456. Bibcode:1999A&AS..137..451G. doi:10.1051/aas:1999489.
  5. 1 2 3 4 Xiao, Guang-Yao; Liu, Yu-Juan; et al. (May 2023). "The Masses of a Sample of Radial-velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics. 23 (5): 055022. arXiv:2303.12409. Bibcode:2023RAA....23e5022X. doi:10.1088/1674-4527/accb7e.
  6. ↑ Llorente De Andrés, F.; Chavero, C.; de la Reza, R.; Roca-Fàbrega, S.; Cifuentes, C. (2021). "The evolution of lithium in FGK dwarf stars. The lithium-rotation connection and the Li desert". Astronomy and Astrophysics. 654. arXiv:2108.05852. Bibcode:2021A&A...654A.137L. doi:10.1051/0004-6361/202141339.
  7. ↑ "HD 32963". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 22 May 2025.
  8. ↑ "HD 32963 b - NASA Science". science.nasa.gov. 2019-04-22. Retrieved 2025-05-21.
  9. 1 2 Martin, Pierre-Yves (2021). "Planet HD 32963 b". exoplanet.eu. Retrieved 2025-05-21.