HD 68988

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HD 68988
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ursa Major
Right ascension 08h 18m 22.1731s
Declination +61° 27′ 38.599″
Apparent magnitude (V) +8.21
Distance 192 ly
(58.8 pc)
Spectral type G0
Other designations

HD 68988 is an 8th magnitude G-type star located approximately 192 light-years away in Ursa Major constellation.

Planetary system[edit]

There are two planets: HD 68988 b was discovered in 2002[1] and HD 68988 c was discovered in 2006.[2]

The HD 68988 system[3] [2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b >1.86 ± 0.16 MJ 0.0704 ± 0.0041 6.27711 ± 0.00021 0.1249 ± 0.0087
c >5–20 MJ 5–7 4000–22000  ?

See also[edit]

References[edit]

  1. ^ Vogt, Steven S. et al. (2002). "Ten Low-Mass Companions from the Keck Precision Velocity Survey". The Astrophysical Journal 568 (1): 352–362. arXiv:astro-ph/0110378. Bibcode:2002ApJ...568..352V. doi:10.1086/338768. 
  2. ^ a b 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. 
  3. ^ 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. 

External links[edit]

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