Lunar phase. The phase and libration of the Moon for 2013 at hourly intervals, with music, titles and supplemental graphics.
Animation of the Moon as it cycles through its phases, as seen from the Northern Hemisphere. The apparent wobbling of the Moon is known as libration. The apparent change in size is due to the eccentricity of the lunar orbit. Moon - Appearance from Earth. The Moon, tinted red and orange, as seen from Earth during a lunar eclipse.
The Moon is in synchronous rotation with Earth, always showing the same face with its near side marked by dark volcanic maria that fill between the bright ancient crustal highlands and the prominent impact craters. It is the most luminous object in the sky after the Sun. Phases of the Moon.