HD 23596 b

Planetbox begin
name = HD 23596 b Planetbox star
star = HD 23596
constell = Perseus
RA = RA|03|48|00.3739
DEC = DEC|+40|31|50.287
dist_ly = 170
dist_pc = 52
class = F8Planetbox orbit
semimajor = 2.83
semimajor_gigameter = 423
periastron = 2.00
periastron_gigameter = 300
apastron = 3.66
apastron_gigameter = 547
eccentricity = 0.292±0.023
period = 1565±21
period_year = 4.285
period_megasecond = 135.2
ang_dist = 54.423
long_peri = 274.1±3.9
t_peri = 2,451,604±15
semi-amp = 124.0±3.0Planetbox character
mass = >7.80±0.35
mass_earth = 2480
radius = ~0.967
radius_earth = 10.5
radius_megameter = 66.9
density = ~11400
gravity = ~216
gravity_earth = 22.0
insolation = 469.675
insolation_earth = 0.3438
temperature = ~196 Planetbox discovery
discovery_date = June 2002
discoverers = Perrier et al.
discovery_site = flagicon|France Haute-Provence Observatory
discovery_method = radial velocity
discovery_status=Published Planetbox catalog
names = HIP 17747 b, SAO 39910 b

HD 23596 b is an exoplanet approximately 170 light years away in the constellation Perseus. The planet is very massive, at least 7.8 times that of Jupiter, classifying as mid-superjovian. Based on its mass, the planet would probably be a gas giant with no solid surface but with gaseous ocean. The planet orbits at the average distance of 2.83 AU, taking 1565 days to complete its orbit with average velocity of 19.7 km/s. The eccentricity of the planet’s orbit is higher than all the planets in our solar system, bringing as close as 2.00 AU to as far as 3.66 AU from the parent star. Combining with very massive planet (7.8 M_J) and wide separation (2.83 AU) will yield high semi-amplitude of 124 m/s.

The planet was discovered by Perrier et al. in 2002 using his radial velocity technique to look for changes in toward (blue-shifting) and away (red-shifting) stellar motion in the sky [radial velocity] .

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