GJ 685

Planetary system · 46.7 light-years away · also HIP 86087

GJ 685 is 46.7 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M0.5 star; the first was found in 2019 by radial velocity (Roque de los Muchachos Observatory).

Fly there in 3D

Worth knowing

GJ 685 b goes round its star every 24.2 days, 4 times as often as Mercury goes round the Sun.

The star

Spectral typeM0.5
Surface temperature3,816 K
Mass0.55 solar masses
Radius0.54 solar radii
Luminosity0.05585 times the Sun
Apparent magnitude9.98
Distance from the Sun46.7 light-years (14.3 parsecs)
Position (J2000)RA 263.8960°, Dec 61.6793°
ConstellationDraco

Planets (1)

PlanetYearOrbitRadiusMassFound
GJ 685 b24.2 days0.134 AU2.95 R⊕ estimated9 M⊕ minimumRadial Velocity, 2019

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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