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HD 142
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HD 142 Observation data
Epoch 2000
Constellation Phoenix
Right ascension 00h 06m 19.1755s
Declination -49° 04' 30.688"
Apparent magnitude (V) 5.7
Distance 67.18 ly
(20.6 pc)
Spectral type G1IV
Other designations
HIP 522
HD 142 is a 6th magnitude star in the constellation Phoenix.
Contents
[hide]
* 1 Planets
o 1.1 HD 142 b
* 2 References
* 3 External links
[edit] Planets
[edit] HD 142 b
HD 142 b Extrasolar planet List of extrasolar planets
Orbital elements
Semimajor axis (a) 1.045±0.061 AU
Eccentricity (e) 0.26±0.18
Orbital period (P) 350.3±3.6 d
Angular distance (θ) 48 mas
Longitude of
periastron (ω) 303°
Time of periastron (T0) 2,451,963
±43 JD
Semi-Amplitude (K) 32.9±4.7 m/s
Physical characteristics
Mass (m) >1.31±0.18 MJ
Discovery information
Discovery date 2001
Discoverer(s) Tinney et al.
Detection method Radial velocity
Discovery status Published
HD 142 b is a jovian planet orbiting about 1 AU from HD 142 . This puts it in the star's habitable zone.
[edit] References
* Tinney et al. (2002). "Two Extrasolar Planets from the Anglo-Australian Planet Search". The Astrophysical Journal 571: 528–531.
* Butler, R. et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646: 505–522. (web Preprint)
[edit] External links
* HD 142 -- High proper-motion Star (SIMBAD Query Result)
* HD 142 (Extrasolar Visions)
* HD 142 b (Extrasolar Visions)
* Star: HD 142 (EPE)
Please improve this article This star-related article is a stub. You can help Wikipedia by expanding it.
Exoplanet icon This extrasolar planet related article is a stub. You can help Wikipedia by expanding it.
Retrieved from "http://en.wikipedia.org/wiki/HD_142"
Categories: Star stubs | Extrasolar planet stubs | Extrasolar planets | Yellow subgiants | Phoenix constellation | HD and HDE objects
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Friday, August 31, 2007
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