It could probably be customized to move a small telescope or asrophotography setup.
He described his project as:
Star track is an Arduino based, GoTo-mount inspired star tracking system. It can point and track any object in the sky(Celestial coordinates are given as input) with 2 Arduinos, a gyro,RTC module,two low-cost stepper motors and a 3D printed structure.
Do keep in mind that lasers are dangerous and that there are strict laws against pointing at airplanes.
Very detailed build guide can be found at: