HD 4203
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Pisces |
| Right ascension | 00h 44m 41.20s[1] |
| Declination | +20° 26′ 56.1″[1] |
| Apparent magnitude (V) | 8.68 |
| Characteristics | |
| Spectral type | G5 |
| Astrometry | |
| Proper motion (μ) | RA: 122.97 ± 0.84[1] mas/yr Dec.: -124.29 ± 0.66[1] mas/yr |
| Parallax (π) | 12.95 ± 1.03[1] mas |
| Distance | 250 ± 20 ly (77 ± 6 pc) |
| Details | |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| Extrasolar Planets Encyclopaedia | data |
HD 4203 is a 9th magnitude star located approximately 250 light years away in the constellation Pisces. The star is yellow with spectral type G5. The star has evolved for 9.41 billion years. The star has a gas giant planet orbiting around a high metallicity star.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >1.164 ± 0.067 MJ | 2.07 ± 0.18 | 431.88 ± 0.85 | 0.519 ± 0.027 | — | — |
| c | >2.17 ± 0.52 MJ | — | 6700 ± 4500 | 0.24 ± 0.13 | — | — |
See also
Notes
- 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
- ↑ Vogt, Steven S.; et al. (2002). "Ten Low-Mass Companions from the Keck Precision Velocity Survey". The Astrophysical Journal 568 (1): 352–362. arXiv:astro-ph/0110378. Bibcode:2002ApJ...568..352V. doi:10.1086/338768.
- ↑ Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701.
External links
Coordinates: 
00h 44m 41.2021s, +20° 26′ 56.138″
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