Home›Exoplanets›KELT-21 bKELT-21 bOrbiting KELT-21Host starKELT-21Discovery year2018Discovery facilityKELT-NorthOrbital period (days)3.6128Radius (Earth radii)17.777Mass (Earth masses)1242.715Equilibrium temp (K)2051Distance (parsecs)470.88