HD 116029

Planetary system · 402.0 light-years away · also HD 116029, HIP 65117

HD 116029 is 402 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this K0 star; the first was found in 2011 by radial velocity (W. M. Keck Observatory).

Fly there in 3D

Worth knowing

HD 116029 c takes 907.0 days to go round its star once.

HD 116029 is one of 2 stars in its system. The position of the other star is not catalogued, so only HD 116029 and its planets are drawn.

Where the archive gives only a period or only an orbit size, the other is worked out from Kepler’s third law with the star’s mass.

The star

Spectral typeK0
Surface temperature4,819 K
Mass0.83 solar masses
Radius4.89 solar radii
Luminosity11.3 times the Sun
Apparent magnitude7.88
Ageabout 2.7 billion years
Distance from the Sun402.0 light-years (123.2 parsecs)
Position (J2000)RA 200.1647°, Dec 24.6485°
ConstellationComa Berenices

Planets (2)

PlanetYearOrbitRadiusMassFound
HD 116029 c907.0 days1.723 AU from Kepler’s law13.7 R⊕ estimated403.64 M⊕ minimumRadial Velocity, 2016
HD 116029 b670.0 days1.650 AU13.6 R⊕ estimated444.96 M⊕ minimumRadial Velocity, 2011

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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