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HD 216770 b

Coordinates: Sky map 22h 55m 53.7097s, −26° 39′ 31.547″
From Wikipedia, the free encyclopedia
HD 216770 b
Discovery
Discovered byMayor et al.
Discovery siteUnited States California, USA
Discovery dateJune 30, 2003
Doppler spectroscopy
Orbital characteristics
Apastron0.63 AU (94,000,000 km)
Periastron0.29 AU (43,000,000 km)
0.46 AU (69,000,000 km)
Eccentricity0.37 ± 0.06
118.45 ± 0.55 d
0.32429 y
42
2,452,672 ± 3.5
281 ± 10
Semi-amplitude30.9 ± 1.9
StarHD 216770
Physical characteristics
Mass>0.65 MJ

HD 216770 b is an extrasolar planet orbiting the star HD 216770. It has a mass about two thirds that of Jupiter, largest planet in the Solar System. But unlike the gas giants in the Solar System, it orbits in a very eccentric orbit around the star. The mean distance from the star is slightly larger than Mercury's, and it completes one orbit around the star in every 118 days.[1]

See also

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References

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  1. ^ Mayor, M.; et al. (2004). "The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE". Astronomy and Astrophysics. 415 (1): 391–402. arXiv:astro-ph/0310316. Bibcode:2004A&A...415..391M. doi:10.1051/0004-6361:20034250. S2CID 5233877.
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