HD 114783 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 114783 | |
| Constellation | Virgo | |
| Right ascension | (α) | 13h 12m 43.786s[1] |
| Declination | (δ) | –02° 15′ 54.13″[1] |
| Distance | 66.9 ± 0.8[1] ly (20.5 ± 0.2[1] pc) | |
| Spectral type | K0V | |
| Orbital elements | ||
| Semi-major axis | (a) | 1.169 ± 0.068 AU |
| Periastron | (q) | 1.070 AU |
| Apastron | (Q) | 1.268 AU |
| Eccentricity | (e) | 0.085 ± 0.033 |
| Orbital period | (P) | 496.9 ± 2.3 d (1.360 y) |
| Orbital speed | (υ) | 25.69 km/s |
| Argument of periastron |
(ω) | 93 ± 25° |
| Time of periastron | (T0) | 2,450,840 ±37 JD |
| Semi-amplitude | (K) | 30.2±0.75 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 1.034 ± 0.089 MJ (328.6 M⊕) |
| Discovery information | ||
| Discovery date | October 15, 2001 | |
| Discoverer(s) | Vogt, Butler, Marcy et al. | |
| Discovery method | Radial velocity | |
| Discovery site | Keck Observatory | |
| Discovery status | Published[2] | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 114783 b is an exoplanet that has a minimum mass almost exactly that of Jupiter. However, since the true mass is not known, it may be more massive, but not likely much. It orbits the star 20% further than Earth orbits the Sun. The orbit is quite circular.[2][3]
See also
References
- 1 2 3 4 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 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
- "HD 114783". Exoplanets.
Coordinates: 
13h 12m 43.7860s, −02° 15′ 54.143″
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