A Comparison of the Law of Light Reflection as Related to the Moon and to Some Rock Varieties

摘要

A distribution pattern of the reflected radiant flux is considered to be one of the most significant photometric characteristics used for judging the probable nature of the Moon's surface. This communication presents results of juxtaposing the indicatrix of reflection of the Moon's surface with indicatrixes for smooth natural surfaces of the fracture of rock specimens having a usual museum size, i.e. of the order of several centimeters. In all experiments, surfaces were selected showing no indications of weathering or of any other changes due to factors acting after the rock was formed.