HD 100777 b

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HD 100777 b
Discovery
Discovered byNaef et al.[1]
Discovery siteChile
Discovery dateMarch 5, 2007
HARPS
Orbital characteristics
Apastron1.40 AU (209,000,000 km)
Periastron0.659 AU (98,600,000 km)
1.03 ± 0.03 AU (154,100,000 ± 4,500,000 km)
Eccentricity0.36 ± 0.02
383.7 ± 1.2 d
1.050 y
29.3
2,453,456.2 ± 2.3
202.7 ± 3.0
Semi-amplitude34.9 ± 0.8
StarHD 100777
Physical characteristics
Mass>1.17 ± 0.02 MJ

HD 100777 b, formally named Laligurans,[2] is an extrasolar planet located approximately 172 light-years away in the constellation of Leo, orbiting the star HD 100777. This is a >1.17 MJ planet taking 33.15 Ms to orbit at 154.1 Gm or 4.99 μpc from the star at 36% eccentricity. The velocity of the orbit is 29.3 km/s. Dominique Naef discovered this planet in March 2007 by using HARPS spectrograph located in Chile.[1]

See also[edit]

References[edit]

  1. ^ a b Naef, M.; et al. (2007). "The HARPS search for southern extra-solar planets IX. Exoplanets orbiting HD 100777 , HD 190647 , and HD 221287". Astronomy and Astrophysics. 470 (2): 721–726. arXiv:0704.0917. Bibcode:2007A&A...470..721N. doi:10.1051/0004-6361:20077361. S2CID 119585936.
  2. ^ "Approved names". NameExoWorlds. Retrieved 2020-01-02.

External links[edit]

Coordinates: Sky map 11h 35m 51.5234s, −04° 45′ 20.509″