Home›Exoplanets›HAT-P-4 bHAT-P-4 bOrbiting HAT-P-4Open encyclopedia entry →Host starHAT-P-4Discovery year2007Discovery facilityHATNetOrbital period (days)3.0565Radius (Earth radii)14.280Mass (Earth masses)213.255Equilibrium temp (K)1686Distance (parsecs)320.45