An artificial satellite (100) is provided with two pointing mechanisms (110, 120). Each pointing mechanism is provided with a main body-side gimbal (111, 121), an expansion boom (112, 122), a thruster-side gimbal (113, 114), and a thruster group (115, 125). The main body-side gimbal links the expansion boom to the satellite main body (130) and adjusts the attitude of the expansion boom. The thruster-side gimbal links the thruster to the expansion boom and adjusts the attitude of the thruster. Each gimbal is a biaxial gimbal.