Trojan (celestial body) Trojan (celestial body) In astronomy, a trojan is a minor planet or moon that shares the orbit of a planet or larger moon, wherein the trojan remains in the same, stable position relative to the larger object. In particular, a trojan remains near one of the two trojan points of stability – designated and – which lie approximately 60° ahead of and behind the larger body, respectively. Trojan points make up two of five types of Lagrangian points, and a trojan is a type of Lagrangian object. They are one type of co-orbital object. In this arrangement, the massive star
Abnormal profit Abnormal profit In economics, abnormal profit, also called excess profit, supernormal profit or pure profit, is "profit of a firm over and above what provides its owners with a normal (market equilibrium) return to capital." Normal profit (return) in turn is defined as opportunity cost of the owner's resources. A related broader term is economic rent, which applies to the owner of a resource, such as land, rather than to the firm as such. According to the theoretical model of perfect competition, abnormal profits are unsustainable because they stimulate new supply, which forces down prices and eliminates the abnormal profit.