Review on 🔭 Celestron AstroMaster Telescope Single Axis R/A Motor Drive by Jason Paredes

It was a bit difficult to set up this product at first, but I realized there is an easy way to set the speed at any time of the day. The fast version is that the earth rotates 1.25 degrees every 5 minutes; If you can measure the distance from your polar axis to a parallel wall and attach a laser pointer to your mount pointing at that wall (I use the laser collimator in reverse) you can measure the speed at which your mount is moving. The scope is the same as mine, 76 inches from the wall. In 5 minutes the laser spot should travel 76 * tan (1.25'(3.141/180)) = 1.65 inches. the end of this distance along the line of movement of the laser sight and start it. Does your scope go further than your distance in 5 minutes? Slow it down. *Most calculators use radian triggers. To convert degrees to radians, simply multiply the result by 3.141/180.** The farther you are from the wall, the better the accuracy.