I have my Celestron GOTO Alt-Az scope on a wedge and the hand display shows a slew limit warning. What’s wrong?
Answer
Probably nothing.
Slew limits are designed to stop your scope from either hitting itself,an attached accessory like a camera or pointing below the horizon.
Since an Alt-Az mount usually operates with the base horizontal, thelower slew limit is usually 0 degrees. However, on a wedge, the planeof the base of the mount now coincides with the celestial equator. Soany slew command to an object like the Orion Nebula will result in theslew warning.
You can either simply press ENTER to bypass the error or you can setnew slew limits. The new lower slew limit for a wedge-mounted scopeshould be your latitude in degrees minus 90.