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Radial velocity · 2022

HD 62549 b

This world receives 82.6× less starlight than Earth; a year lasts 39.2 years; the light you see left it 161 years ago.

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Size
1.1 × Jupiterestimated
A year
39.2 years11.8 AU
Temperature
−181 °C92 K

About this world

HD 62549 b is a gas giant orbiting HD 62549, a yellow, Sun-like star 161 light-years from Earth. It is about 1.1 times the size of Jupiter (its size estimated from its mass) and holds 8.5 Jupiter masses. It completes an orbit every 39.2 years at 12 AU from its star.

Its equilibrium temperature is about 92 K (−181 °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 2022 by radial velocity with Multiple Observatories. The star wobbles toward and away from us, Doppler-shifting its spectrum.

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