HD 204313

Planetary system · 155.9 light-years away · also HD 204313, HIP 106006

HD 204313 is 156 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this G5 V star; the first was found in 2010 by radial velocity (La Silla Observatory).

Fly there in 3D

Worth knowing

HD 204313 c goes round its star every 35.0 days, 2.5 times as often as Mercury goes round the Sun.

The star

Spectral typeG5 V
Surface temperature5,767 K
Mass1.03 solar masses
Radius1.1 solar radii
Luminosity1.258 times the Sun
Apparent magnitude7.99
Ageabout 3.38 billion years
Distance from the Sun155.9 light-years (47.8 parsecs)
Position (J2000)RA 322.0511°, Dec -21.7274°
ConstellationCapricornus

Planets (3)

PlanetYearOrbitRadiusMassFound
HD 204313 c35.0 days0.211 AU4.31 R⊕ estimated17.163 M⊕ minimumRadial Velocity, 2015
HD 204313 b5.6 years3.185 AU12.9 R⊕ estimated1466.8 M⊕Radial Velocity, 2010
HD 204313 e20.1 years7.457 AU12.2 R⊕ estimated4868.2 M⊕Radial Velocity, 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

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