lunar eclipse

This occurs when the Earth's shadow is cast onto the Moon. It will happen at the time of the full moon, and will be visible from the entire night-side of the Earth.

During an umbral eclipse, when all or part of the Moon passes through the darker central cone of shadow (equivalent to a total solar eclipse) the affected portion may be coloured anything from almost black through deep red to pale orange.

In a penumbral eclipse, the Moon enters the lighter outer shadow (corresponding to a partial solar eclipse). This will generally be a pale amber or yellow colour.

Inconstant Moon