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
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.