HR 7722 b

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HR 7722 b
Extrasolar planet List of extrasolar planets
Parent star
Orbital elements
Physical characteristics
Temperature (T) 332 K
Discovery information
Discovery date
Discoverer(s)
Discovery method Radial velocity (HARPS)
Discovery site La Silla Observatory
Discovery status Published
Other designations
5 G. Capricorni b, Gl 785 b, CD -27°14659 b, HD 192310 b,[1] LHS 488 b, LTT 8009 b, GCTP 4804.00 b, SAO 189065 b, FK5 b, NSV 12933 b, HIP 99825 b

HR 7722 b is an exoplanet orbiting the star HR 7722.[1] It orbits its parent star with a semimajor axis of 0.32 ± 0.005 AU, an eccentricity of 0.13 ± 0.04. and an orbital period of 74.72 days.[2]

The Neptune-sized planet has at least 21 times the mass of Earth[3] and 3 to 4 times its diameter.

HR 7722 b was discovered on 1 November 2010 and lies within the inner edge of the habitable zone of HR 7722.

References[edit]

  1. ^ a b Pepe, F.; et al. (2011). "The HARPS search for Earth-like planets in the habitable zone: I – Very low-mass planets around HD20794, HD85512 and HD192310". arXiv:1108.3447. Bibcode:2011yCat..35349058P. doi:10.1051/0004-6361/201117055. 
  2. ^ Open Exoplanet Catalogue, Gl 785b
  3. ^ Andrew W. Howard, The NASA-UC Eta-Earth Program: III. A Super-Earth orbiting HD 97658 and a Neptune-mass planet orbiting Gl 785, et al.