K2-77

Planetary system · 462.3 light-years away

K2-77 is 462 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,160 K star; the first was found in 2016 by transit (K2).

Fly there in 3D

Worth knowing

K2-77 b goes round its star every 8.20 days, 11 times as often as Mercury goes round the Sun.

The star

Surface temperature5,160 K
Mass0.847 solar masses
Radius0.792 solar radii
Luminosity0.401 times the Sun
Apparent magnitude12.224
Ageabout 4.7 billion years
Distance from the Sun462.3 light-years (141.7 parsecs)
Position (J2000)RA 55.2285°, Dec 12.5724°
ConstellationTaurus

Planets (1)

PlanetYearOrbitRadiusMassFound
K2-77 b8.20 days0.0753 AU2.4996 R⊕603.88 M⊕Transit, 2016

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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