One can make a color-color plot by arranging stars in a two-dimensional graph, where each axis measures a different color index. Below are some examples from the SDSS, which uses a set of broadband filters called (u, g, r, i, z); they are very roughly equivalent to (U, B, R, I, _).
regime - the organization that is the governing authority of a political unit; the government reduced taxes; the matter was referred to higher authorities. authorities, government.
Quick Answer. A dictatorship is a system of government in which a single person or party has complete political power; the dictator often maintains power by employing oppressive methods. Dictatorship is an old form of government with origins in ancient Rome.