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 |
| Distance | 310 ± 20 ly (94 ± 5 pc) |
| Absolute magnitude (MV) | 3.36 |
| Details | |
| Mass | 1.39 ± 0.04[2] M☉ |
| Radius | 1.95 ± 0.04[2] R☉ |
| Luminosity | 4.37 ± 0.02[2] L☉ |
| Surface gravity (log g) | 3.99 ± 0.03[2] cgs |
| Temperature | 5985 ± 57[2] K |
| Age | 3.6 ± 0.6[2] Gyr |
| Other designations | |
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.
| 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 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 - 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.
- ↑ 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.
External links
- "Notes for star HD 33283". The Extrasolar Planets Encyclopaedia.
Coordinates: 
05h 08m 01.0118s, −26° 47′ 50.896″
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