HD 80653

Planetary system · 358.3 light-years away · also HD 80653, TYC 825-1097-1

HD 80653 is 358 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G0 V star; the first was found in 2020 by transit (K2).

Fly there in 3D

Worth knowing

HD 80653 b goes round its star every 17.3 hours, 122 times as often as Mercury goes round the Sun.

The star

Spectral typeG0 V
Surface temperature5,959 K
Mass1.15 solar masses
Radius1.199 solar radii
Luminosity1.628 times the Sun
Apparent magnitude9.452
Ageabout 3.3 billion years
Distance from the Sun358.3 light-years (109.9 parsecs)
Position (J2000)RA 140.3391°, Dec 14.3679°
ConstellationCancer

Planets (2)

PlanetYearOrbitRadiusMassFound
HD 80653 b17.3 hours0.0166 AU1.621 R⊕5.61 M⊕Transit, 2020
K2-312 c871.3 days1.882 AU12.8 R⊕ estimated1681.3 M⊕ minimumRadial Velocity, 2023

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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