Kepler-20 is a star about 934 light-years (286 parsecs) from Earth in the constellation Lyra with a system of at least five, and possibly six, known planets. [5]

2025年3月28日 · Kepler-20 e is a terrestrial exoplanet that orbits a G-type star. Its mass is 0.76 Earths, it takes 6.1 days to complete one orbit of its star, and is 0.0637 AU from its star. Its discovery was announced in 2011.

2011年12月20日 · This artist's animation flies through the Kepler-20 star system, where NASA's Kepler mission discovered the first Earth-size planets around a star beyond our own. The system is jam-packed with five planets, all circling within a distance roughly equivalent to Mercury's orbit in our solar system.

2011年12月20日 · Both planets reside in a five-planet system called Kepler-20, approximately 1,000 light-years away in the constellation Lyra. Kepler-20e orbits its parent star every 6.1 days and Kepler-20f every 19.6 days.

A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory. Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small …

Kepler-20f (also known by its Kepler Object of Interest designation KOI-070.05) is an exoplanet orbiting the Sun-like star Kepler-20, the second outermost of five such planets discovered by NASA 's Kepler spacecraft.

Kepler-20e is the first planet smaller than the Earth discovered to orbit a star other than the Sun. A year on Kepler-20e only lasts 6 days, as it is much closer to its host star than the Earth is to the Sun. The temperature at the surface of the planet, around 1400 degrees Fahrenheit, is much too hot to support life, as we know it.

2011年12月20日 · Kepler-20 (also designated as KOI 070, KIC 6850504 and 2MASS J19104752+4220194) is a G8V star of Kepler magnitude 12.497 and celestial coordinates right ascension α = 19 h 10 min 47.5 s and...

We present the discovery of the Kepler-20 planetary system, which we initially identified through the detection of five distinct periodic transit signals in the Kepler light curve of the host star 2MASS J19104752+4220194.

2025年4月8日 · Both planets reside in a five-planet system called Kepler-20, approximately 1,000 light-years away in the constellation Lyra. Kepler-20e orbits its parent star every 6.1 days and Kepler-20f every 19.6 days.