عنوان مقاله [English]
نویسنده [English]چکیده [English]
Full lunar eclipse is one of the most interesting scenes in astronomy. Until now, not two of the observed lunar eclipses have been completely similar.
All solid heavenly bodies, which receive light from the sun, create a shadow in space. The extent of this shadow depends on the size of the mass and its distance from the sun. There are two main elements in these shadows, which are Umbra and Penumbra.