description Kepler-11b Overview
Kepler-11b is a sub-Neptune exoplanet orbiting the Sun-like star Kepler-11, approximately 2,000 light-years from Earth. Announced in 2011, it is one of six confirmed planets in the Kepler-11 system, which was notable for having one of the most compact multi-planet configurations discovered. Kepler-11b has a radius approximately 1.8 times that of Earth and an orbital period of approximately 10 days. Its low measured density suggests a substantial volatile envelope surrounding a rocky or icy interior.
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What is Kepler-11b?
Kepler-11b is a sub-Neptune exoplanet orbiting the Sun-like star Kepler-11. It is one of six confirmed planets in the Kepler-11 system, which has a very compact planetary layout.
How far away is the Kepler-11 system?
The Kepler-11 system is approximately 2,000 light-years from Earth. Its planets were identified because their transits repeatedly dim the host star as they pass in front of it.
When was Kepler-11b announced?
The Kepler-11 planetary system was announced in 2011. The discovery was important because several planets were found orbiting within a compact region around one star.
Is Kepler-11b similar to Earth?
No, Kepler-11b is classified as a sub-Neptune rather than an Earth-sized rocky planet. Its size and likely composition place it among the smaller gas-rich or volatile-rich planets known from the Kepler mission.
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