HD 47186

Planetary system · 122.2 light-years away · also HD 47186, HIP 31540

HD 47186 is 122 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G6 V star; the first was found in 2008 by radial velocity (La Silla Observatory).

Fly there in 3D

Worth knowing

HD 47186 b goes round its star every 4.08 days, 22 times as often as Mercury goes round the Sun.

The star

Spectral typeG6 V
Surface temperature5,657 K
Mass0.96 solar masses
Radius1.08 solar radii
Luminosity1.104 times the Sun
Apparent magnitude7.63
Ageabout 6.5 billion years
Distance from the Sun122.2 light-years (37.5 parsecs)
Position (J2000)RA 99.0367°, Dec -27.6234°
ConstellationCanis Major

Planets (2)

PlanetYearOrbitRadiusMassFound
HD 47186 b4.08 days0.0500 AU5.02 R⊕ estimated22.248 M⊕ minimumRadial Velocity, 2008
HD 47186 c3.7 years2.395 AU13 R⊕ estimated111.42 M⊕ minimumRadial Velocity, 2008

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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