description Kepler-444 b Overview
Kepler-444 b is a rocky sub-Earth exoplanet orbiting the ancient K-type star Kepler-444, a system estimated to be approximately 11 billion years old. Discovered through transit photometry by NASA's Kepler space telescope and announced in 2015, it is the innermost of five known planets in the system. All five planets orbit closer to their host star than Mercury does to the Sun, with orbital periods of less than 10 days. Kepler-444 b has a radius smaller than that of Earth.
help Kepler-444 b FAQ
What is Kepler-444 b?
Kepler-444 b is a rocky sub-Earth exoplanet orbiting the ancient K-type star Kepler-444. NASA's Kepler space telescope found it through transit photometry, and the discovery was announced in 2015.
Where is Kepler-444 b in its planetary system?
Kepler-444 b is the innermost of the five known planets orbiting Kepler-444. Its close orbit means it completes a transit relatively quickly compared with the system's outer planets.
How old is the Kepler-444 system?
The Kepler-444 system is estimated to be approximately 11 billion years old. That makes it much older than the Solar System, which formed about 4.6 billion years ago.
Can humans live on Kepler-444 b?
There is no evidence that Kepler-444 b is habitable or supports life. It is a small rocky planet very close to its host star, making its surface environment likely much harsher than Earth's.
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