HD 68988 c

HD 68988 c
Exoplanet List of exoplanets
Parent star
Star HD 68988
Constellation Ursa Major
Right ascension (α) 08h 18m 22.1731s
Declination (δ) +61° 27′ 38.599″
Distance192 ly
(58.8 pc)
Spectral type G0
Orbital elements
Semi-major axis(a) 5.32 AU
Periastron (q) 5.27 AU
Apastron (Q) 5.37 AU
Eccentricity (e) 0.01 ± 0.27
Orbital period(P) 4100 ± 7300 d
(11 y)
Orbital speed (υ) 14 km/s
Argument of
periastron		 (ω) 129°
Time of periastron (T0) 2452730 ± 510 JD
Semi-amplitude (K) 60 ± 11 m/s
Physical characteristics
Minimum mass(m sin i)5.29 MJ
Discovery information
Discovery date November 2006
Discoverer(s) Wright et al.
Discovery method Radial velocity
Discovery site California, US
Discovery status poorly constrained

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 would be 5.32 AU with an orbital period of 4100 ± 7300 days (11 years).[1][2]

See also

References

  1. ↑ Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701.
  2. ↑ Wright, J. T.; et al. (2007). "Four New Exoplanets and Hints of Additional Substellar Companions to Exoplanet Host Stars". The Astrophysical Journal. 657 (1): 533–545. arXiv:astro-ph/0611658. Bibcode:2007ApJ...657..533W. doi:10.1086/510553.
  • "Notes for planet HD 68988 c". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-25.
  • "HD 68988". Exoplanets. Retrieved 2008-08-25.

Coordinates: 08h 18m 22.1731s, +61° 27′ 38.599″


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