HD 68988 c

HD 68988 c
Discovery
Discovered byWright et al.
Discovery siteCalifornia, US
Discovery dateNovember 2006
Radial velocity
Orbital characteristics
13.2 AU (1.97×109 km)[1]
Eccentricity0.45+0.130
−0.081
16100+11000
−3500 d[1]
14
2452730 ± 510
129
Semi-amplitude60 ± 11
StarHD 68988
Physical characteristics
Mass15.0+2.8
−1.5MJ[1]

HD 68988 c is an exoplanet located approximately 192 light-years away in the constellation of Ursa Major, orbiting the star HD 68988. The parameters including period and eccentricity are highly uncertain. The semimajor axis was initially believed to be 5.32 AU with an orbital period of 4100 ± 7300 days (11 years).[2][3] The planetary orbit was significantly refined in 2021.[1]

  1. ^ a b c d Rosenthal, Lee J.; Fulton, Benjamin J.; Hirsch, Lea A.; Isaacson, Howard T.; Howard, Andrew W.; Dedrick, Cayla M.; Sherstyuk, Ilya A.; Blunt, Sarah C.; Petigura, Erik A.; Knutson, Heather A.; Behmard, Aida; Chontos, Ashley; Crepp, Justin R.; Crossfield, Ian J. M.; Dalba, Paul A.; Fischer, Debra A.; Henry, Gregory W.; Kane, Stephen R.; Kosiarek, Molly; Marcy, Geoffrey W.; Rubenzahl, Ryan A.; Weiss, Lauren M.; Wright, Jason T. (2021), "The California Legacy Survey. I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades", The Astrophysical Journal Supplement Series, 255 (1): 8, arXiv:2105.11583, Bibcode:2021ApJS..255....8R, doi:10.3847/1538-4365/abe23c, S2CID 235186973
  2. ^ Cite error: The named reference Butler2006 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Wright2007 was invoked but never defined (see the help page).