Kepler-307

Planetary system · 1877.3 light-years away

Kepler-307 is 1,877 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 5,367 K star; the first was found in 2013 by transit (Kepler).

Fly there in 3D

Worth knowing

Kepler-307 b goes round its star every 10.4 days, 8 times as often as Mercury goes round the Sun.

The star

Surface temperature5,367 K
Mass0.907 solar masses
Radius0.814 solar radii
Luminosity0.7559 times the Sun
Apparent magnitude14.149
Ageabout 0.95 billion years
Distance from the Sun1877.3 light-years (575.6 parsecs)
Position (J2000)RA 297.7951°, Dec 40.4176°
ConstellationCygnus

Planets (2)

PlanetYearOrbitRadiusMassFound
Kepler-307 b10.4 days0.0936 AU2.43 R⊕7.44 M⊕Transit, 2013
Kepler-307 c13.1 days0.109 AU2.2 R⊕3.64 M⊕Transit, 2013

Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.

The planets, compared

For a star of 5,367 K, 0.76 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.85 to 1.51 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.

The light you see left 1,877 years ago, around AD 150.

Nearest systems to it

Also found by Kepler

Sources

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