Data from TESS and Kepler telescopes reveal that the planet Kepler-21 b is denser than previously thought, eliminating the possibility of a water world

7. 8. 2024

Data from TESS and Kepler telescopes reveal that the planet Kepler-21 b is denser than previously thought, eliminating the possibility of a water world

Star system: Kepler 21 A | Distance from the Sun: 354 light years

The new data also hint at the existence of a second, larger planet farther from the star

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Scientific study

Utilizing Photometry from Multiple Sources to Mitigate Stellar Variability in Precise Radial Velocities: A Case Study of Kepler-21 external link

Stars mentioned

Kepler 21 A

F6 IV, Subgiant

mass: 1.41 M☉

radius: 3 R☉

distance: 354 ly

stars in the system: 2

exoplanets: 2

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