Kepler-334: A Distant Star With Three Earth-Like Planets

Kepler-334 is a star located 1390 light-years away. It is 4.07 billion years old and has a mass of 1.07 solar masses, a radius of 1.11 solar radii, and a temperature of 5960 K. Its reported mass and radius estimates are larger than the Sun's, and its reported temperature is hotter than the Sun's. Three planets orbit this host.

All three planets were discovered in 2014 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. Repeated dips help establish orbital periods. Kepler-334 b, Kepler-334 c, and Kepler-334 d are all classified as Earth-like, meaning their radii stay within 1.5 times Earth's radius.

Kepler-334 b has a radius of 1.12 Earth radii and an orbital period of 5.47 days. Among the listed planets, it has the shortest year and the smallest radius by reported estimates. Kepler-334 c has a radius of 1.43 Earth radii and an orbital period of 12.8 days. Its reported radius estimate is larger than Earth's, and among the listed planets it has the largest radius and the second-shortest year by reported estimates. Kepler-334 d has a radius of 1.41 Earth radii and an orbital period of 25.1 days. Its reported radius estimate is larger than Earth's, and among the listed planets it has the longest year and the second-smallest radius by reported estimates.