HD 90156

Planetary system · 71.6 light-years away · also HD 90156, HIP 50921

HD 90156 is 71.6 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G5V star; the first was found in 2011 by radial velocity (La Silla Observatory).

Fly there in 3D

Worth knowing

HD 90156 b goes round its star every 49.8 days, 1.8 times as often as Mercury goes round the Sun.

The star

Spectral typeG5V
Surface temperature5,599 K
Mass0.84 solar masses
Radius0.920286 solar radii
Luminosity0.72 times the Sun
Apparent magnitude6.92
Ageabout 4.4 billion years
Distance from the Sun71.6 light-years (21.9 parsecs)
Position (J2000)RA 155.9801°, Dec -29.6451°
ConstellationHydra

Planets (1)

PlanetYearOrbitRadiusMassFound
HD 90156 b49.8 days0.250 AU4.43 R⊕ estimated17.98 M⊕ minimumRadial Velocity, 2011

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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