Once a technology only for professionals, computerized go-to telescope mounts allow you to select an object from a catalog and direct the telescope at that object with the click of a button. These mounts are often used with altazimuth fork drives, but they’re also common on equatorial mounts. Amazingly convenient, these mounts are great for urban observers who can’t see many stars to use as guideposts to fainter objects. These mounts are not magic, however; you need to align them to two or three stars and provide time and latitude information so the computer knows where it is on Earth. Some go-to mounts have a GPS system to automatically register time and location. These mounts will also track the stars to follow the rotation of the Earth.
5 Ways “Go-To” Mounts Can Make You a Better Astronomer