HD 216770 b

Planetbox begin
name = HD 216770 b Planetbox star
star = HD 216770
constell = Piscis Austrinus
RA=RA|22|55|53.7097
DEC=DEC|–26|39|31.547
dist_ly=123.5
dist_pc=37.89
class=K1VPlanetbox orbit
semimajor = 0.46
semimajor_gigameter = 69
periastron = 0.29
periastron_gigameter = 43
apastron = 0.63
apastron_gigameter = 94
eccentricity = 0.37 ± 0.06
period = 118.45 ± 0.55
period_year = 0.32429
period_megasecond = 10.234
speed = 42
ang_dist = 12
long_peri = 281 ± 10
t_peri = 2,452,672 ± 3.5
semi-amp = 30.9 ± 1.9Planetbox character
mass = >0.65 Planetbox discovery
discovery_date = June 30, 2003
discoverers = Mayor "et al"
discovery_method = Doppler spectroscopy
discovery_site = flagicon|United States California, USA
discovery_status = Published Planetbox catalog
names = HIP 113238 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 our 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.

See also

* HD 10647 b
* HD 108874 b
* HD 111232 b
* HD 142415 b
* HD 169830 c
* HD 41004 Ab
* HD 65216 b

References

*cite journal | url=http://www.edpsciences.org/articles/aa/abs/2004/07/aa0250/aa0250.html |author=Mayor et al.|title=The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE |journal = Astronomy and Astrophysics | volume=415 | year=2004 | pages=391–402|doi=10.1051/0004-6361:20034250|format=abstract ( [http://xxx.lanl.gov/abs/astro-ph?papernum=0310316 web Preprint] )

External links

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