Kepler-109

Planetary system · 1548.8 light-years away · also TYC 3138-1820-1

Kepler-109 is 1,549 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 5,950 K star; the first was found in 2014 by transit (Kepler).

Fly there in 3D

Worth knowing

Kepler-109 b goes round its star every 6.48 days, 14 times as often as Mercury goes round the Sun.

The star

Surface temperature5,950 K
Mass1.094 solar masses
Radius1.387 solar radii
Luminosity2.221 times the Sun
Apparent magnitude12.398
Ageabout 6.2 billion years
Distance from the Sun1548.8 light-years (474.9 parsecs)
Position (J2000)RA 290.3927°, Dec 40.2849°
ConstellationLyra

Planets (2)

PlanetYearOrbitRadiusMassFound
Kepler-109 b6.48 days0.0701 AU2.49 R⊕4.9 M⊕Transit, 2014
Kepler-109 c21.2 days0.155 AU2.65 R⊕8.2 M⊕Transit, 2014

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.

Sources

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