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HD 4308
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HD 4308 Observation data
Epoch J2000
Constellation Tucana
Right ascension 00h 44m 39s
Declination -65° 38' 58"
Apparent magnitude (V) 6.54
Distance 71.39 ly
(21.9 pc)
Spectral type G5V
Other designations
GJ 9028, HIP 3497
HD 4308 is a 6th magnitude star in the constellation Tucana.
[edit] HD 4308 b
HD 4308 b Extrasolar planet List of extrasolar planets
Orbital elements
Semimajor axis (a) 0.115±0.096 AU
Eccentricity (e) 0.00±0.01
Orbital period (P) 15.56±0.02 d
Angular distance (θ) 5.205 mas
Longitude of
periastron (ω) 359±47°
Time of periastron (T0) 2,453,314.70
±2.0 JD
Semi-Amplitude (K) 4.07±0.2 m/s
Physical characteristics
Mass (m) >0.0442 MJ (14 ME)
Discovery information
Discovery date 2005
Discoverer(s) Udry et al.
Detection method Radial velocity
Discovery status Published
HD 4308 b is an exoplanet (jovian planet) orbiting HD 4308.
[edit] References
* Udry et al. (2006). "The HARPS search for southern extra-solar planets V. A 14 Earth-masses planet orbiting HD 4308". Astronomy and Astrophysics 447: 361-367.
[edit] External links
* Planet: HD 4308 b (EPE)
Sirius This main sequence 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_4308"
Categories: Extrasolar planets | Tucana constellation | Yellow dwarfs | Main sequence star stubs | Extrasolar planet stubs
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