An actor who stands upstage, forcing the other actors to face him and turn their backs to the audience, in order to draw more attention to himself.

plural of quadruple star system

plural of binary star system

plural of trinary star system

(astronomy) A star system consisting of a solitary star not gravitationally bound to other stars

(astronomy) A stellar system that has four stars orbiting around each other; quadruple star

(astronomy) A stellar system that has multiple stars orbiting around each other; multiple star

plural of single star system

(astronomy) a binary star

(astronomy) a trinary star