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.
Definition of 'regime'. regime (reÉªÊiËm ) If you refer to a government or system of running a country as a regime, you are critical of it because you think it is not democratic and uses unacceptable methods. ...the collapse of the Fascist regime at the end of the war. Pujol was imprisoned and tortured under the Franco regime.