KOI-4777

Planetary system · 561.8 light-years away · also Kepler-1971

KOI-4777 is 562 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 3,515 K star; the first was found in 2022 by transit (Kepler).

Fly there in 3D

Worth knowing

KOI-4777.01 goes round its star every 9.9 hours, 214 times as often as Mercury goes round the Sun.

The star

Surface temperature3,515 K
Mass0.41 solar masses
Radius0.4 solar radii
Luminosity0.02289 times the Sun
Apparent magnitude16.413
Ageabout 4 billion years
Distance from the Sun561.8 light-years (172.2 parsecs)
Position (J2000)RA 287.2621°, Dec 42.0322°
ConstellationLyra

Planets (1)

PlanetYearOrbitRadiusMassFound
KOI-4777.019.9 hours0.0080 AU0.51 R⊕99.2 M⊕Transit, 2022

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

Privacy