HD 20367 b

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]
Distance88 ± 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
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

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. 1 2 3 HD 20367 -- Star, database entry, SIMBAD. Accessed on line October 1, 2008.
  2. 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.
  3. ↑ 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.
  4. ↑ A 1.1 Jupiter-mass planet orbiting HD 20367, Geneva Observatory, October 7, 2002. Accessed on line October 1, 2008.

Coordinates: 03h 17m 40.0461s, +31° 07′ 37.372″


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