HD 33283

HD 33283
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Lepus
Right ascension 05h 08m 01.012s[1]
Declination –26° 47′ 50.90″[1]
Apparent magnitude (V) 8.05
Characteristics
Spectral type G4V
Astrometry
Proper motion (μ) RA: 55.93 ± 0.39[1] mas/yr
Dec.: -46.71 ± 0.68[1] mas/yr
Parallax (π)10.62 ± 0.62[1] mas
Distance310 ± 20 ly
(94 ± 5 pc)
Absolute magnitude (MV)3.36
Details
Mass1.39 ± 0.04[2] M☉
Radius1.95 ± 0.04[2] R☉
Luminosity4.37 ± 0.02[2] L☉
Surface gravity (log g)3.99 ± 0.03[2] cgs
Temperature5985 ± 57[2] K
Age3.6 ± 0.6[2] Gyr
Other designations
CD–26°2029, HIP 23889, SAO 170100
Database references
SIMBADdata

HD 33283 is an 8th magnitude star in the constellation Lepus. It is located 94 parsecs (310 light years) away from the solar system.[1] HD 33283 is similar to our Sun in terms of spectral type [G4V]. However, the star dwarfs the Sun by 24% more massive, 20% larger, 217 K hotter, and 232% more metals. The star is younger than our Sun by 40%.

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

The HD 33283 planetary system[3]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b >0.33 MJ 0.145 18.179 ± 0.007 0.48 ± 0.05 — —

See also

References

  1. 1 2 3 4 5 6 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. ↑ 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.
  • "Notes for star HD 33283". The Extrasolar Planets Encyclopaedia.

Coordinates: 05h 08m 01.0118s, −26° 47′ 50.896″


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