Data from the Kepler space telescope reveal two planets with radically different densities orbiting the same star with very similar orbital periods. One planet has a rocky Earth-like composition and the other is akin to Neptune. ... Constraints for Kepler-36b and c are shown as two-dimensional joint probability densities and confidence contours ...

Kepler-36b is an exoplanet with a dense iron-like composition and a close orbital companion, Kepler-36c. It was discovered by the Kepler space telescope in 2012 and has a low mass due to the loss of its hydrogen/helium envelope.

Kepler-36b is a super-Earth planet that orbits very close to its star, Kepler-36, in the constellation of Cygnus. It has a low density and a short orbital period of 13.868 days, and it interacts gravitationally with its companion planet, Kepler-36c.

ケプラー36cは、質量が地球の8.08倍、半径が地球の3.679倍もある [3] 。 表面の重力は地球のほぼ6割である。 [3] この数値から、ケプラー36cは海王星サイズのガス惑星であるとされている。平均密度は0.89g/cm 3 であり天王星より低密度で、土星よりは高密度である [3] 。 ...

Resources. ExEP. Kepler-36 c. Unable to render the provided source. Kepler-36 c is a Neptune-like exoplanet that orbits an F-type star. Its mass is 7.13 Earths, it takes 16.2 days to complete one orbit of its star, and is 0.1283 AU from its star. Its discovery was announced in 2012. Planet Radius: 0.328 x Jupiter.

Currently, Kepler-36c requires ∼8% of its mass in H/He, while Kepler-36b is consistent with an Earth-like composition. Nonetheless it is possible both planets formed with ∼22% H/He, but subsequent mass-loss has distinguished them due to differences in their core masses. This provides a natural explanation for the large density contrast seen ...