The moon

Type: Natural satellite
Mass: 7.35 × 10^22 kg
Position in the solar system: /
Distance from the Sun: 150 million km

The Moon is Earth's only permanent natural satellite, orbiting it at a distance of approximately 350,000 km.
Its proximity, spectacular terrain, and intense luminosity make it beloved by astronomers… and hated by astrophotographers who track the deep sky.

Fun fact: The Moon always shows the same side to Earth. It rotates in exactly the same time as it takes to orbit our planet—a phenomenon called gravitational locking.