HD 28185

Planetary system · 128.4 light-years away · also HD 28185, HIP 20723

HD 28185 is 128 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G5 star; the first was found in 2001 by radial velocity (La Silla Observatory).

Fly there in 3D

Worth knowing

HD 28185 c takes 24.9 years to go round its star once.

The star

Spectral typeG5
Surface temperature5,602 K
Mass0.974 solar masses
Radius1.048 solar radii
Luminosity0.97 times the Sun
Apparent magnitude7.8
Ageabout 8.3 billion years
Distance from the Sun128.4 light-years (39.4 parsecs)
Position (J2000)RA 66.6100°, Dec -10.5511°
ConstellationEridanus

Planets (2)

PlanetYearOrbitRadiusMassFound
HD 28185 b385.9 days1.034 AU12.8 R⊕ estimated1859.3 M⊕ minimumRadial Velocity, 2001
HD 28185 c24.9 years8.500 AU12.8 R⊕ estimated1907 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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