Exoplanet
HAT-P-20 b
Orbiting HAT-P-20
Overview
HAT-P-20 b is an exoplanet orbiting the star HAT-P-20, discovered in 2010 using the Transit method. It is a Neptune-sized world.
Key Measurements
Radius
9.72
Earth radii
015 R⊕
Mass
2302.90
Earth masses
0500 M⊕
Orbital Period
2.9
days
0.1d10,000d
Distance
71.0
parsecs
Nearby10,000 pc
Equilibrium Temp
970
K
150 K3,500 K
Radius (Earth radii)
9.72
Mass (Earth masses)
2302.90
Measured
Equilibrium Temperature
970 K
Orbital Period
2.88 days
Distance from Earth
71.0 pc (~232 ly)
Spectral Type
K3
Temperature
4595 K
Mass (Solar)
0.76 M☉
Radius (Solar)
0.69 R☉
Luminosity
-0.72 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
111.9164°, 24.3361°
Discovery Method
Transit
Discovery Year
2010
Data Sources
Source ID: HAT-P-20 b