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Radial velocity · 2003

HD 114386 b

This world receives 10.4× less starlight than Earth; a year lasts 2.57 years; the light you see left it 91 years ago.

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Size
1.2 × Jupiterestimated
A year
2.57 years1.73 AU
Temperature
−119 °C155 K

About this world

HD 114386 b is a gas giant orbiting HD 114386, an orange dwarf (type K3VC) 91.1 light-years from Earth. It is about 1.2 times the size of Jupiter (its size estimated from its mass) and holds 1.5 Jupiter masses. It completes an orbit every 2.57 years at 1.7 AU from its star, on a strongly elongated orbit (e = 0.23).

Its equilibrium temperature is about 155 K (−119 °C): too cold for liquid water on its surface. At its size it almost certainly keeps a deep envelope of hydrogen and helium.

It was discovered in 2003 by radial velocity with La Silla Observatory. The star wobbles toward and away from us, Doppler-shifting its spectrum. HD 114386 has 2 known planets; the others are HD 114386 c.

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