81 Ceti b

81 Ceti b

Planetbox begin
name = 81 Ceti b
Planetbox star
star = 81 Ceti
constell = Cetus
RA = RA|02|37|41.8003
DEC = DEC|–03|23|46.229
dist_ly = 317
dist_pc = 97.2
class = G5III
Planetbox orbit
semimajor = 2.5
semimajor_gigameter = 370
periastron = 2.0
periastron_gigameter = 300
apastron = 3.0
apastron_gigameter = 440
eccentricity = 0.206 ± 0.029
period = 952.7 ± 8.8
period_year = 2.608
period_megasecond = 82.31
ang_dist = 26
long_peri = 175 ± 69
t_peri = 2486 ± 26
semi-amp =
Planetbox character
mass = >5.3
radius = ~0.932
density = ~8700
gravity = ~160
gravity_earth = ~16
temperature = ~527
Planetbox discovery
discovery_date = July 3, 2008
discoverers = Sato "et al"
discovery_method = Doppler Spectroscopy
discovery_site =
discovery_status = Published
Planetbox catalog
names = HD 16400 b, HIP 12247 b, HR 771 b

81 Ceti b is an extrasolar planet approximately 317 light years away in the constellation of Cetus. This planet is classified as Super-Jupiter because it has minimum mass 5.3 times that of Jupiter and the speculated radius 0.932 times. This planet orbits at the average distance of 2.5 AU, taking about 2.6 years to revolve with 20.6% eccentricity. In Sudarsky scheme, this planet is classified as with speculated temperature of 527 K. This planet was discovered on July 3, 2008 by Sato "et al", who used Doppler Spectroscopy and found the wobbling of the star caused by the planet’s gravity during its revolution.

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