HD 20367 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 20367 | |
| Constellation | Aries | |
| Right ascension | (α) | 03h 17m 40.0461s[1] |
| Declination | (δ) | +31° 07′ 37.372″[1] |
| Distance | 88 ± 3 ly (27.1 ± 0.8 pc) | |
| Spectral type | G0[1] | |
| Orbital elements | ||
| Semi-major axis | (a) | 1.246 ± 0.075[2] AU |
| Periastron | (q) | 0.847 AU |
| Apastron | (Q) | 1.645 AU |
| Eccentricity | (e) | 0.320 ± 0.090[2] |
| Orbital period | (P) | 469.5 ± 9.3[2] d (1.29 y) |
| Argument of periastron |
(ω) | 135 ± 16[2]° |
| Time of periastron | (T0) | 2,451,860 ± 18[2] JD |
| Semi-amplitude | (K) | 29.0 ± 3.0[2] m/s |
| Physical characteristics | ||
| Mass | (m) | >1.17 ± 0.23[2] MJ (>370 ± 70 M⊕) |
| Discovery information | ||
| Discovery date | June 2002 | |
| Discoverer(s) | Udry, Mayor, Queloz | |
| Discovery method | radial velocity | |
| Discovery site | Haute-Provence Observatory, France | |
| Discovery status | Announced[3][4] | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 20367 b is an extrasolar planet approximately 88 light years away in the constellation of Aries. It has mass similar to that of Jupiter. It orbits the star at a mean distance that is a quarter farther than Earth orbits from the Sun. The 470-day (1.3 year) orbit is somewhat eccentric.
References
- 1 2 3 HD 20367 -- Star, database entry, SIMBAD. Accessed on line October 1, 2008.
- 1 2 3 4 5 6 7 Table 3, Catalog of Nearby Exoplanets, R. P. Butler et al., The Astrophysical Journal 646, #1 (July 2006), pp. 505–522, Bibcode: 2006ApJ...646..505B, doi:10.1086/504701.
- ↑ Table 1, The ELODIE survey for northern extra-solar planets. I. Six new extra-solar planet candidates, C. Perrier, J.-P. Sivan, D. Naef, J. L. Beuzit, M. Mayor, D. Queloz, S. Udry, Astronomy and Astrophysics 410 (November 2003), pp. 1039–1049, Bibcode: 2003A&A...410.1039P, doi:10.1051/0004-6361:20031340.
- ↑ A 1.1 Jupiter-mass planet orbiting HD 20367, Geneva Observatory, October 7, 2002. Accessed on line October 1, 2008.
External links
- "Notes for planet HD 20367 b". The Extrasolar Planets Encyclopaedia.
Coordinates: 
03h 17m 40.0461s, +31° 07′ 37.372″
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