WASP-121 b

Exoplanet

An ultra-hot Jupiter stretched into a football shape by tides, with vaporized metals escaping from its glowing upper atmosphere.

Facts

TypeExoplanet
OrbitsWASP-121
Distance from Earth858 ly
Diameter260,764 km
Mass2.25 × 10^27 kg
Temperature2,085°C
Orbital period1 days
Discovered2016

WASP-121 b in context

At 260,764 km across, WASP-121 b is 20 times the diameter of Earth.

Its mass is 376 times the mass of Earth.

A single orbit takes 1.3 days.

The light reaching us from WASP-121 b tonight left it around 858 years ago.

An average temperature of 2,358 K works out at 2,085 degrees Celsius, warmer than the 15 degrees Earth averages.

It has been on record since 2016.

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