HD 219828 b

Planetbox begin
name = HD 219828 bPlanetbox star
star = HD 219828
constell = Pegasus
RA = RA|23|18|46.7353
DEC = DEC|+18|38|44.590
dist_ly = 264.5
dist_pc = 81.1
class = G0IV Planetbox orbit
semimajor = 0.052
semimajor_gigameter = 7.8
periastron = 0.051
periastron_gigameter = 7.6
apastron = 0.053
apastron_gigameter = 8.0
eccentricity = 0.021
period = 3.8335 ± 0.0013
period_year = 0.010495
period_megasecond = 0.33121
ang_dist = 0.641
long_peri = 0
t_peri = 2,453,898.6289 ± 0.072
semi-amp = 7 ± 50Planetbox character
mass = >0.066
mass_earth = >21
radius = ~0.398
radius_earth = 4.32
radius_megameter = 27.5
density = ~1400
gravity = ~11
gravity _earth = 1.1
insolation = 1641645
insolation_earth = 1201.721
temperature = ~1507Planetbox discovery
discovery_date = Feb 18, 2007
discoverers = Melo "et al."
discovery_site = flag|Chile
discovery_method = radial velocity
discovery_status=PublishedPlanetbox catalog
names = HIP 115100 b, SAO 108536 b

HD 219828 b is an extrasolar planet approximately 265 light years away in the constellation of Pegasus. This is a Neptune-mass planet at least 21 times more massive than Earth. The planet's composition is unknown, but it may be similar to the ice giants Uranus and Neptune, or alternatively it may be a mainly rocky like Super-Earth.

See also

* HD 159868 b

External links

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