HD 33283

HD 33283 is an 8th magnitude primary of the binary star system in the constellation Lepus. It is located 90 parsecs (294 light years) away from the solar system. HD 33283 is similar to our Sun in terms of spectral type [G4V].

HD 33283
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Lepus
Right ascension 05h 08m 01.0123s[1]
Declination −26° 47′ 50.8941″[1]
Apparent magnitude (V) 8.05[2]
Characteristics
Spectral type G3/5V[2]
B−V color index 0.641±0.009[2]
Astrometry
Radial velocity (Rv)+4.51±0.19[2] km/s
Proper motion (μ) RA: 56.184±0.046[1] mas/yr
Dec.: −46.058±0.055[1] mas/yr
Parallax (π)11.0993 ± 0.0286[1] mas
Distance293.9 ± 0.8 ly
(90.1 ± 0.2 pc)
Absolute magnitude (MV)3.19[2]
Orbit[3]
PrimaryHD 33283
CompanionHD 33283 B
Semi-major axis (a)0.0557"
(5244 AU)
Details[4]
HD 33283
Mass1.39±0.04 M☉
Radius1.95±0.04 R☉
Luminosity4.37±0.02 L☉
Surface gravity (log g)3.99±0.03 cgs
Temperature5,985±57 K
Metallicity [Fe/H]0.35±0.08[2] dex
Rotational velocity (v sin i)1.09±0.26[5] km/s
Age3.6±0.6 Gyr
HD 33283 B
Mass0.17[3] M☉
Other designations
CD–26°2029, FK5 4470, Gaia DR2 2955981936912654592, GC 6286, HD 33283, HIP 23889, SAO 170100, PPM 75021, 2MASS J05080100-2647509[6]
Database references
SIMBADdata

In the 2014, a comoving red dwarf companion star HD 33283 B of spectral class M4.5 was detected at projected separation 5244 AU.[3]

Planetary System

In 2006, Johnson found a jovian planet orbiting HD 33283.[7]

The HD 33283 planetary system[8]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b ≥0.329±0.071 MJ 0.1508±0.0087 18.1991±0.0017 0.399±0.056 — —

See also

References
  1. Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  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. S2CID 119257644.
  3. New wide stellar companions of exoplanet host stars
  4. 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. S2CID 54555839.
  5. Jofré, E.; et al. (2015). "Stellar parameters and chemical abundances of 223 evolved stars with and without planets". Astronomy & Astrophysics. 574: A50. arXiv:1410.6422. Bibcode:2015A&A...574A..50J. doi:10.1051/0004-6361/201424474. S2CID 53666931.
  6. "HD 33283". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-06-25.
  7. Johnson, John Asher; et al. (2006). "The N2K Consortium. VI. Doppler Shifts without Templates and Three New Short-Period Planets". The Astrophysical Journal. 647 (1): 600–611. arXiv:astro-ph/0604348. Bibcode:2006ApJ...647..600J. doi:10.1086/505173. S2CID 12421834.
  8. Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5. S2CID 119243619.


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