HD 12235

Planetary system · 103.6 light-years away · also HD 12235

HD 12235 is 104 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 5,986 K star; the first was found in 2022 by radial velocity (Multiple Observatories).

Fly there in 3D

Worth knowing

HD 12235 b goes round its star every 4.36 days, 20 times as often as Mercury goes round the Sun.

The star

Surface temperature5,986 K
Mass1.1 solar masses
Radius1.80185 solar radii
Luminosity3.756 times the Sun
Apparent magnitude5.88051
Distance from the Sun103.6 light-years (31.8 parsecs)
Position (J2000)RA 30.0392°, Dec 3.0959°
ConstellationPisces

Planets (2)

PlanetYearOrbitRadiusMassFound
HD 12235 b4.36 days0.0540 AU3.23 R⊕ estimated10.488 M⊕ minimumRadial Velocity, 2022
HD 12235 c99.5 years22.210 AU12.5 R⊕ estimated3135.7 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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