Kepler-122

Planetary system · 3351.1 light-years away

Kepler-122 is 3,351 light-years from the Sun. The NASA Exoplanet Archive lists 5 planets around this 6,050 K star; the first was found in 2014 by transit (Kepler).

Fly there in 3D

Worth knowing

Kepler-122 b goes round its star every 5.77 days, 15 times as often as Mercury goes round the Sun.

The star

Surface temperature6,050 K
Mass0.982 solar masses
Radius1.216 solar radii
Luminosity1.862 times the Sun
Apparent magnitude14.403
Ageabout 7.94 billion years
Distance from the Sun3351.1 light-years (1027.5 parsecs)
Position (J2000)RA 291.1119°, Dec 39.9490°
ConstellationLyra

Planets (5)

PlanetYearOrbitRadiusMassFound
Kepler-122 b5.77 days0.0640 AU2.34 R⊕6.08 M⊕ estimatedTransit, 2014
Kepler-122 c12.5 days0.108 AU5.87 R⊕29 M⊕ estimatedTransit, 2014
Kepler-122 d21.6 days0.155 AU2.2 R⊕5.48 M⊕ estimatedTransit, 2014
Kepler-122 e38.0 days0.227 AU2.6 R⊕27.7 M⊕Transit, 2014
Kepler-122 f56.3 days0.286 AU1.75 R⊕36 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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