🔭 Alt-Azimuth Telescope Mount: Tracking Rates, Field Rotation and Worm-Drive Step Rate (2D)

Sky chart and side view of an alt-azimuth telescope mount. Set latitude, target declination, hour angle, worm wheel teeth, microstepping and the motor limit, and see where the star is, how fast the azimuth and altitude axes must turn, how the image field rotates and where the zenith blind spot sits. The mount is the one in the 3D exploded model; the tracking mathematics are computed here with four in-page checks.