Tycho Crater, located at 43 degrees S, 11 degrees W, is approximately 87
kilometres in
diameter.
The rim-to-floor height (ie,
depth of the crater) is around 5 kilometres.
Tycho is one the youngest large craters, with an estimated age of approximately 100 million years. The 'rays' (formed by ejected material from the impact) produced when Tycho formed extend up to 2000 kilometres along the surface of the Moon and are easily visible with the naked eye.
Tycho is also categorized by a central peak or spur composed of a different material than the surrounding crater floor. The spur material comes from a greater depth within the Moon's crust, a result of upwelling from the tremendous impact cracking the surface of the Moon.