HD 34445 b

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HD 34445 b
Extrasolar planet List of extrasolar planets
Parent star
Star HD 34445
Constellation Orion
Right ascension (α) 05h 17m 40.98s[1]
Declination (δ) +07° 21′ 12.1″[1]
Apparent magnitude (mV) 7.31
Distance 152 ± 5[1] ly
(46 ± 1[1] pc)
Spectral type G0
Mass (m) 1.07 M
Orbital elements
Semimajor axis (a) 2.01 ± 0.01 AU
(300 Gm)
    43.2 mas
Periastron (q) 0.86 AU
(129 Gm)
Apastron (Q) 3.16 AU
(472 Gm)
Eccentricity (e) 0.57 ± 0.06
Orbital period (P) 1004 ± 7 d
(2.75 y)
Orbital speed (υ) 21.9 km/s
Argument of
periastron
(ω) 135 ± 16°
Time of periastron (T0) 23845 ± 40 JD
Semi-amplitude (K) 15.9 ± 1.2 m/s
Physical characteristics
Minimum mass (m sin i) 0.67 ± 0.04 MJ
Discovery information
Discovery date 2004
Discoverer(s) Howard et al.[2]
Discovery method Radial velocity
Discovery site Keck Observatory
Discovery status Confirmed
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBAD data

HD 34445 b is an extrasolar planet which orbits the G-type star HD 34445, located approximately 152 light years away in the constellation Orion. This planet was discovered in 2004 and finally confirmed in 2009. This planet has a minimum mass two-thirds that of Jupiter and orbits about 2 AU from the parent star. However this planet orbits in a very eccentric path. The planet’s distance from the star ranges from 0.86 to 3.16 AU however it spends its full orbit within the star's habitable zone.

See also[edit]

Other planets that were discovered or confirmed on November 13, 2009:

References[edit]

  1. ^ a b c d van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ Howard, Andrew W. et al. (2010). "The California Planet Survey. I. Four New Giant Exoplanets". The Astrophysical Journal 721 (2): 1467–1481. arXiv:1003.3488. Bibcode:2010ApJ...721.1467H. doi:10.1088/0004-637X/721/2/1467. 

Coordinates: Sky map 05h 17m 40.9786s, +07° 21′ 12.036″