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(telescope control motor)

The term actuator refers to a control motor, and the term is commonly used for telescopes to refer to such devices that physically position the telescope or parts of it. A motor to keep the telescope pointed at an object can go by that name. In large astronomical telescopes, smaller actuators may be used to align segmented mirrors to act as a single mirror or to position parts of an adaptive optics system. In a space telescope, the actuators may be positioning the attitude of the entire spacecraft.


Referenced by:
deformable mirror (DM)