Moon

The moon is (sometimes one of) the nearest celestial body of a planet, which orbits around this one.

The Earth has a moon, which is called Moon.

Details
The Moon is our moon, which is at more than 340 000km from Earth.

It has been created about 4 billion years ago, probably by a collision between the Earth and a Mars-sized planet.

It is important for life on Earth, because its gravity controls elevations of the water streams, winds, allows a better evolution of species, and stabilize Earth axial tilt.

How to observe it
It can be visible a part of a month during the day, and it is visible during the night (except during the New Moon). We can photography it easily and can be the first pictures of an amateur in astrophotography.