HD 20367 b

Last updated
HD 20367 b
Discovery
Discovered by Udry, Mayor, Queloz
Discovery site Haute-Provence Observatory,
Flag of France.svg  France
Discovery dateJune 2002
radial velocity
Orbital characteristics
Apastron 1.645 AU (246,100,000 km)
Periastron 0.847 AU (126,700,000 km)
1.246 ± 0.075 AU (186,400,000 ± 11,200,000 km) [1]
Eccentricity 0.320 ± 0.090 [1]
469.5 ± 9.3 [1] d
1.29 y
2,451,860 ± 18 [1]
135 ± 16 [1]
Semi-amplitude 29.0 ± 3.0 [1]
Star HD 20367
Physical characteristics
Mass >1.17 ± 0.23 [1] MJ
(>370 ± 70 M)

    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. However, subsequent observations put the existence of this planet strongly in doubt. [2]

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    References

    1. 1 2 3 4 5 6 7 Table 3, Catalog of Nearby Exoplanets, R. P. Butler et al., The Astrophysical Journal646, #1 (July 2006), pp. 505–522, Bibcode:2006ApJ...646..505B, doi:10.1086/504701.
    2. Wittenmyer, Robert A.; et al. (May 2009), "A Search for Multi-Planet Systems Using the Hobby-Eberly Telescope", The Astrophysical Journal Supplement, 182 (1): 97–119, arXiv: 0903.0652 , Bibcode:2009ApJS..182...97W, doi:10.1088/0067-0049/182/1/97.

    Coordinates: Jupiter and moon.png 03h 17m 40.0461s, +31° 07′ 37.372″