|
gptkbp:instance_of
|
gptkb:exoplanet
|
|
gptkbp:apparent_magnitude
|
gptkb:12.5
|
|
gptkbp:atmosphere
|
hydrogen and helium
|
|
gptkbp:average_temperature
|
approximately 1500 K
|
|
gptkbp:contains_star
|
gptkb:Milky_Way
|
|
gptkbp:country
|
HAT-P-31 system
|
|
gptkbp:discovered_by
|
HATNet
HATNet Project
|
|
gptkbp:discovery
|
transit method
HAT-P-31b: A New Transiting Exoplanet
|
|
gptkbp:discovery_year
|
gptkb:2010
|
|
gptkbp:distance_from_earth
|
approximately 500 light years
|
|
gptkbp:eccentricity
|
0.0
|
|
gptkbp:has_radius
|
1.1 times the radius of Jupiter
|
|
gptkbp:has_spectral_type
|
G-type star
|
|
gptkbp:hosts
|
HAT-P-31
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
HAT-P-31 b
|
|
gptkbp:lighting
|
observed
|
|
gptkbp:mass
|
0.5 times the mass of Jupiter
0.5 Mjup
|
|
gptkbp:orbital_inclination
|
87 degrees
87.5 degrees
|
|
gptkbp:orbital_period
|
gptkb:none
2.3 days
|
|
gptkbp:population_density
|
0.5 g/cm³
|
|
gptkbp:semi_major_axis
|
0.035 AU
|
|
gptkbp:spectroscopic_data
|
available
|
|
gptkbp:storage
|
available
|
|
gptkbp:surface
|
approximately 20 m/s²
|
|
gptkbp:transmission
|
1.5%
|
|
gptkbp:type
|
gptkb:hot_Jupiter
|
|
gptkbp:year
|
gptkb:2009
|