Exoplanet
KELT-21 b
Orbiting KELT-21
Overview
KELT-21 b is an exoplanet orbiting the star KELT-21, discovered in 2018 using the Transit method. It is a Jupiter-sized world.
Key Measurements
Radius
17.78
Earth radii
015 R⊕
Mass
1242.72
Earth masses
0500 M⊕
Orbital Period
3.6
days
0.1d10,000d
Distance
470.9
parsecs
Nearby10,000 pc
Equilibrium Temp
2051
K
150 K3,500 K
Radius (Earth radii)
17.78
Mass (Earth masses)
1242.72
Measured
Equilibrium Temperature
2051 K
Orbital Period
3.61 days
Distance from Earth
470.9 pc (~1536 ly)
Spectral Type
A8 V
Temperature
7598 K
Mass (Solar)
1.46 M☉
Radius (Solar)
1.64 R☉
Luminosity
0.90 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
304.8000°, 32.5810°
Discovery Method
Transit
Discovery Year
2018
Data Sources
Source ID: KELT-21 b