HAT-P-2 b
Orbiting HAT-P-2
HAT-P-2 b is an exoplanet orbiting the star HAT-P-2, discovered in 2007 using the Transit method.
Minimum Mass (M sin i)
2739.69
Earth masses
Orbital Period
5.6
days
Distance
127.8
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
2739.69
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Ment et al. 2018
Orbital Period
5.634+0.000−0.000days
Semi-Major Axis
0.0681+0.0005−0.0005au
M sin(i) (Earth masses)
2739.69+54.03−54.03
M sin(i) (Jupiter masses)
8.6200+0.1700−0.1700
Eccentricity
0.5172+0.0019−0.0019
Epoch of Periastron
2463982.49+0.00−0.00days(JD)
Argument of Periastron
188.0+0.2−0.2deg
Radial Velocity Semi-Amplitude
953.30+3.60−3.60m/s
Distance from Earth
127.8 pc (~417 ly)
Spectral Type
F8
Temperature
6380 K
Mass (Solar)
1.33 M☉
Radius (Solar)
1.39 R☉
Luminosity
0.53 log L☉
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
245.1514°, 41.0480°
Discovery Method
Transit
Discovery Year
2007
Source ID: HAT-P-2 b
HAT-P-2 b orbits HAT-P-2 and was reported in 2007 and was detected with the Transit method.
Published measurements list a minimum mass of 2,739.69 Earth masses (M sin i) and an orbital period of 5.63 days.
Catalog data places the system at about 127.8 parsecs from Earth, a host star classified as F8, and 2 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open HAT-P-2More planets in this system