KELT-21 b
Orbiting KELT-21
KELT-21 b is an exoplanet orbiting the star KELT-21, discovered in 2018 using the Transit method. It is a Jupiter-sized world.
Radius
17.78
Earth radii
Mass
1242.72
Earth masses
Orbital Period
3.6
days
Distance
470.9
parsecs
Equilibrium Temp
2051
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
Source ID: KELT-21 b
KELT-21 b orbits KELT-21 and was reported in 2018 and was detected with the Transit method.
Published measurements list a radius of 17.78 Earth radii, a mass of 1,242.72 Earth masses, an orbital period of 3.61 days, and an equilibrium temperature near 2,051 K.
Catalog data places the system at about 470.9 parsecs from Earth, a host star classified as A8 V, and 1 known planet in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open KELT-21