The slow motion control slow-motion control function is used to make small, precise movements of a telescope to keep the observed object in the field of view of our eyepiece. With controllers, the user can easily follow the star as it moves across the sky. Slow-motion control is often used on non-motorized telescope mounts in the form of rods or knobs.
The example of a slow-motion controller on an equatorial mount
Depending on the type of mount, there can be a different number of slow-motion controllers installed on it. The mount can have a motion control knob on the:
Mostly they are installed on manual mounts, but they can also be found on computerized mounts.