Kepler-47 is a binary star system in the constellation Cygnus located about 3,420 light-years (1,050 parsecs) away from Earth. The stars have three exoplanets, all of which orbit both stars at the same time, making this a circumbinary system.

开普勒47（Kepler-47）是一个周围有至少两颗系外行星环绕的联星系统，距离地球，约4900光年位于天鹅座。 开普勒47是由半径稍小于太阳的开普勒47A和半径只有太阳三分之一的开普勒47B组成。 系统轨道半长轴0.0836天文单位（1250万公里），周期7.45日。 开普勒47A的半径和质量与太阳大致相等，但光度只有太阳的84%，金属量也是较太阳低的 [Fe/H]=-0.25。 表面温度是5636 K。 开普勒47B的半径和质量只有太阳的三分之一，光度只有太阳的1.4%，表面温度3357 K。 …

2024年10月25日 · Kepler-47 b is a Neptune-like exoplanet that orbits a G-type star. Its mass is 2.07 Earths, it takes 49.5 days to complete one orbit of its star, and is 0.2877 AU from its star.

2019年4月17日 · Astronomers have discovered a third planet in the Kepler-47 system, securing the system’s title as the most interesting of the binary-star worlds. Using data from NASA’s Kepler space telescope, a team of researchers, led by astronomers at San Diego State University, detected the new Neptune-to-Saturn-size planet orbiting between two ...

克卜勒47 （Kepler-47）是一個周圍有至少兩顆 系外行星 環繞的 聯星 系統，距離地球約3,420光年，位於 天鵝座 [4]。 克卜勒47是由半徑稍小於太陽的 克卜勒47A 和半徑只有太陽三分之一的 克卜勒47B 組成 [3][1]。 系統軌道半長軸0.0836天文單位（1250萬公里），週期7.45日 [1]。 克卜勒47A的半徑和質量與太陽大致相等，但光度只有太陽的84% [1]，金屬量也是較太陽低的 [Fe/H]=-0.25 [2]。 表面溫度是5636 K [1]。 克卜勒47B的半徑和質量只有太陽的三分之一 [1]，光度只有 …

Kepler-47b (also known as Kepler-47 (AB) b and by its Kepler Object of Interest designation KOI-3154.01) is an exoplanet orbiting the binary star system Kepler-47, the innermost of three such planets discovered by NASA's Kepler spacecraft. The system, also involving two other exoplanets, is located about 3,400 light-years (1,060 parsecs) away.

2024年2月6日 · 开普勒47 （ Kepler-47 ）是一个周围有至少两颗 系外行星 环绕的 联星 系统，距离地球约3,420光年，位于 天鹅座 [ 4] 。 开普勒47是由半径稍小于太阳的 开普勒47A 和半径只有太阳三分之一的 开普勒47B 组成 [ 3][ 1] 。 系统轨道半长轴0.0836天文单位（1250万公里），周期7.45日 [ 1] 。 开普勒47A的半径和质量与太阳大致相等，但光度只有太阳的84% [ 1] ，金属量也是较太阳低的 [Fe/H]=-0.25 [ 2] 。 表面温度是5636 K [ 1] 。 开普勒47B的半径和质量只有太阳 …

This reference contains discussion regarding the stellar multiplicity of this system. Parameters listed are for primary. Secondary has mass 0.342±0.003 M ☉, radius 0.338±0.002 R. (Orosz et al. 2019)

2012年8月28日 · We report the detection of Kepler-47, a system consisting of two planets orbiting around an eclipsing pair of stars. The inner and outer planets have radii 3.0 and 4.6 times that of Earth, respectively. The binary star consists of a Sun-like star and a companion roughly one-third its size, orbiting each other every 7.45 days.

2012年8月27日 · We report the detection of Kepler-47, a system consisting of two planets orbiting around an eclipsing pair of stars. The inner and outer planets have radii 3.0 and 4.6 times that of the Earth, respectively. The binary star consists of a Sun-like star and a companion roughly one-third its size, orbiting each other every 7.45 days.