HD 5319 b
Exoplanet | List of exoplanets | |
---|---|---|
Parent star | ||
Star | HD 5319 | |
Constellation | Cetus | |
Right ascension | (α) | 00h 55m 01.40s[1] |
Declination | (δ) | +00° 47′ 22.4″[1] |
Apparent magnitude | (mV) | 8.05 |
Distance | 370 ± 40[1] ly (110 ± 10[1] pc) | |
Spectral type | K0III | |
Orbital elements | ||
Semi-major axis | (a) | 1.74 AU (260 Gm) |
17.4 mas | ||
Periastron | (q) | 1.53 AU (229 Gm) |
Apastron | (Q) | 1.95 AU (292 Gm) |
Eccentricity | (e) | 0.12 |
Orbital period | (P) | 669.37 d (1.8326 y) |
Argument of periastron |
(ω) | 103 ± 14° |
Time of periastron | (T0) | 2,453,163 ± 30 JD |
Semi-amplitude | (K) | 39.4 m/s |
Physical characteristics | ||
Minimum mass | (m sin i) | 1.94 MJ (617 M⊕) |
Discovery information | ||
Discovery date | January 11, 2007 | |
Discoverer(s) | Robinson et al.[2] | |
Discovery method | Doppler spectroscopy | |
Discovery site | California & Carnegie Planet Search | |
Discovery status | Published[2] | |
Database references | ||
Extrasolar Planets Encyclopaedia | data | |
SIMBAD | data | |
Exoplanet Archive | data | |
Open Exoplanet Catalogue | data |
HD 5319 b is a gas giant exoplanet approximately 370 light years away[1] in the constellation of Cetus. This planet has a minimum mass nearly two times more than Jupiters. The planet has an almost circular orbit, ranging from 1.53 to 1.95 AU with a period of 1.8 years.[2]
See also
References
- 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
- 1 2 3 Robinson, Sarah E.; et al. (2007). "Two Jovian-Mass Planets in Earthlike Orbits". The Astrophysical Journal. 670 (2): 1391–1400. arXiv:0708.0832. Bibcode:2007ApJ...670.1391R. doi:10.1086/522106.
Coordinates: 00h 55m 01.4005s, +00° 47′ 22.392″
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