HD 92788

Planetary system · 113.0 light-years away · also HD 92788, HIP 52409

HD 92788 is 113 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G6 V star; the first was found in 2000 by radial velocity (Multiple Observatories).

Fly there in 3D

Worth knowing

HD 92788 c takes 31.8 years to go round its star once.

The star

Spectral typeG6 V
Surface temperature5,744 K
Mass1.15 solar masses
Radius1.14 solar radii
Luminosity1.047 times the Sun
Apparent magnitude7.31637
Ageabout 2.55 billion years
Distance from the Sun113.0 light-years (34.7 parsecs)
Position (J2000)RA 160.7021°, Dec -2.1847°
ConstellationSextans

Planets (2)

PlanetYearOrbitRadiusMassFound
HD 92788 b325.8 days0.970 AU13 R⊕ estimated1195 M⊕ minimumRadial Velocity, 2000
HD 92788 c31.8 years10.500 AU13 R⊕ estimated1166.4 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.

The planets, compared

For a star of 5,744 K, 1.0 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.97 to 1.72 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.

The light you see left 113 years ago, around 1910.

Nearest systems to it

Also found by Multiple Observatories

Sources

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