With the Pi Zero and a stepper motor, he’s now able to focus the telescope with more accuracy and repeatability than clumsy human fingers will be able to replicate.

The Unistellar eQuinox 2 is our telescope experts' pick as the best overall smart telescope, and is now $420 off for Father's ...

A motorized mount with altitude and azimuth control is basic equipment for the serious observer, but adding a servo to control the focus of your telescope is one step beyond your average off-the ...