Exoplanet
Nicknamed 'Earth's cousin,' orbiting a Sun-like star at a similar distance and period as Earth around the Sun.
| Type | Exoplanet |
|---|---|
| Orbits | Kepler-452 |
| Distance from Earth | 1,800 ly |
| Diameter | 20,000 km |
| Mass | 1.96 × 10²⁵ kg |
| Temperature | -8°C |
| Orbital period | 385 days |
| Apparent magnitude | 13.4 |
| Hemisphere | Northern |
| Discovered | 2015 |
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 20,000 km across, Kepler-452b is 1.6 times the diameter of Earth.
Its mass is 3.3 times the mass of Earth.
A single orbit takes 1.1 years.
The light reaching us from Kepler-452b tonight left it around 1,800 years ago.
An average temperature of 265 K works out at -8 degrees Celsius, colder than the 15 degrees Earth averages.
It has been on record since 2015.
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