HAT-P-31 b
Orbiting HAT-P-31
HAT-P-31 b is an exoplanet orbiting the star HAT-P-31, discovered in 2011 using the Transit method. It is a Jupiter-sized world.
Radius
12.22
Earth radii
Mass
721.47
Earth masses
Orbital Period
5.0
days
Distance
344.1
parsecs
Radius (Earth radii)
12.22
Mass (Earth masses)
721.47
Measured
Equilibrium Temperature
Unknown
Parameter source: Stassun et al. 2017
Orbital Period
5.005+0.000−0.000days
Planet Mass (Earth masses)
721.47+266.98−266.98
Planet Mass (Jupiter masses)
2.2700+0.8400−0.8400
Eccentricity
0.2500+0.0000−0.0000
Radial Velocity Semi-Amplitude
232.50+1.10−1.10m/s
Distance from Earth
344.1 pc (~1122 ly)
Spectral Type
Unknown
Temperature
6065 K
Mass (Solar)
1.31 M☉
Radius (Solar)
1.39 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
271.5377°, 26.4266°
Discovery Method
Transit
Discovery Year
2011
Source ID: HAT-P-31 b
HAT-P-31 b orbits HAT-P-31 and was reported in 2011 and was detected with the Transit method.
Published measurements list a radius of 12.22 Earth radii, a mass of 721.47 Earth masses, and an orbital period of 5.01 days.
Catalog data places the system at about 344.1 parsecs from Earth and 1 known planet in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open HAT-P-31