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HD 216770 b

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]

HD 216770 b
Discovery
Discovered byMayor et al.
Discovery site 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

See also edit

References edit

  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.

External links edit


216770, extrasolar, planet, orbiting, star, 216770, mass, about, thirds, that, jupiter, largest, planet, solar, system, unlike, giants, solar, system, orbits, very, eccentric, orbit, around, star, mean, distance, from, star, slightly, larger, than, mercury, co. 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 HD 216770 bDiscoveryDiscovered byMayor et al Discovery siteCalifornia USADiscovery dateJune 30 2003Detection methodDoppler spectroscopyOrbital characteristicsApastron0 63 AU 94 000 000 km Periastron0 29 AU 43 000 000 km Semi major axis0 46 AU 69 000 000 km Eccentricity0 37 0 06Orbital period sidereal 118 45 0 55 d0 32429 yAverage orbital speed42Time of periastron2 452 672 3 5Argument of periastron281 10Semi amplitude30 9 1 9StarHD 216770Physical characteristicsMass gt 0 65 MJSee also editHD 10647 b HD 108874 b HD 111232 b HD 142415 b HD 169830 c HD 41004 Ab HD 65216 bReferences edit 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 amp A 415 391M doi 10 1051 0004 6361 20034250 S2CID 5233877 External links edit Notes for planet HD 216770 b Extrasolar Planets Encyclopaedia HD 216770 Exoplanets Archived from the original on 2009 11 25 Retrieved 2008 09 10 nbsp This extrasolar planet related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title HD 216770 b amp oldid 1191219448, wikipedia, wiki, book, books, library,

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