|
gptkbp:instance_of
|
gptkb:exoplanet
|
|
gptkbp:apparent_magnitude
|
gptkb:12.5
|
|
gptkbp:atmosphere
|
high
hydrogen and helium
thick
hydrogen, helium, and heavier elements
hydrogen-rich atmosphere
|
|
gptkbp:average_temperature
|
very high
approximately 1500 K
|
|
gptkbp:contains_star
|
gptkb:Milky_Way
|
|
gptkbp:country
|
gptkb:hot_Jupiter
gptkb:Giant
formed in a protoplanetary disk
HAT-P-39 system
|
|
gptkbp:declination
|
+30° 06' 36.0"
+30° 12' 36.0"
|
|
gptkbp:discovered_by
|
gptkb:TESS
HATNet Project
|
|
gptkbp:discovery
|
gptkb:TESS_satellite
gptkb:Hawaii
transit method
2012 Ap J 757 18
|
|
gptkbp:discovery_year
|
gptkb:2012
gptkb:2018
|
|
gptkbp:distance_from_earth
|
approximately 300 light years
approximately 600 light years
|
|
gptkbp:eccentricity
|
0.0
|
|
gptkbp:fledging_period
|
possible
|
|
gptkbp:has_radius
|
1.1 Jupiter radii
|
|
gptkbp:has_spectral_type
|
G-type star
F-type star
|
|
gptkbp:hosts
|
HAT-P-39
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
HAT-P-39 b
|
|
gptkbp:lighting
|
observed
used to determine size and mass
observed light curve
|
|
gptkbp:mass
|
0.27 Jupiter masses
less than Jupiter
0.25 Jupiter masses
|
|
gptkbp:max_speed
|
strong
|
|
gptkbp:metallicity
|
solar metallicity
|
|
gptkbp:notable_galaxies
|
1.2m telescope
|
|
gptkbp:orbital_altitude
|
stable orbit
very close to its star
|
|
gptkbp:orbital_inclination
|
88.5 degrees
|
|
gptkbp:orbital_period
|
gptkb:none
4.0 days
4.3 days
|
|
gptkbp:population_density
|
0.5 g/cm³
|
|
gptkbp:radius_comparison
|
slightly larger than Jupiter
|
|
gptkbp:research
|
collected by various telescopes
|
|
gptkbp:right_ascension
|
19h 54m 36.0s
19h 12m 36.0s
|
|
gptkbp:rotation_period
|
gptkb:unknown
|
|
gptkbp:seasonal_activities
|
high
|
|
gptkbp:semi_major_axis
|
0.052 AU
0.055 AU
|
|
gptkbp:stellar_radiation
|
high levels
|
|
gptkbp:surface
|
approximately 10 m/s²
|
|
gptkbp:transmission
|
approximately 1.5%
|
|
gptkbp:type
|
gptkb:hot_Jupiter
|
|
gptkbp:yearly_orbit
|
1 year on HAT-P-39 b equals 4 days on Earth
|