Exoplanet
A scorching lava world completing an orbit in under 18 hours, theorized to have a carbon-rich interior.
| Type | Exoplanet |
|---|---|
| Orbits | 55 Cancri A |
| Distance from Earth | 41 ly |
| Diameter | 24,200 km |
| Mass | 4.82 × 10²⁵ kg |
| Temperature | 1,685°C |
| Orbital period | 1 days |
| Apparent magnitude | 5.95 |
| Hemisphere | Northern |
| Discovered | 2004 |
Every exoplanet here was found indirectly, by the wobble or the dimming it causes in its own star, since none is close enough to photograph in real detail.
At 24,200 km across, 55 Cancri e is 1.9 times the diameter of Earth.
Its mass is 8.1 times the mass of Earth.
A single orbit takes 17.7 hours.
The light reaching us from 55 Cancri e tonight left it around 41 years ago.
An average temperature of 1,958 K works out at 1,685 degrees Celsius, warmer than the 15 degrees Earth averages.
It has been on record since 2004.
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