Knowledge Base

My backlash settings behave differently before and after alignment. Is t...

If you adjust your mount’s anti-backlash settings before it's aligned, it is either not tracking or tracking in a different direction when aligned on the sky. This puts different demands...

My autoguider port seems to have a problem. How do I check it?

Try to issue a command to move your mount from your autoguider program or autoguider hand control (not to be confused with the scope’s NexStar hand control).The movement is very...

I’m trying to install TheSkyX First Light in Windows XP. It stops instal...

TheSkyX First Light is Windows XP compatible, but only works with certain graphics card and drivers. Make sure you are using graphics hardware and software that are fully compatible and...

I have two scopes I want to use side-by-side or tandem with my Celestron...

Yes, you can! Tandem support (the ability to turn the Dec axis 90 degrees and mount multiple optical tubes side-by-side) is now available for firmware versions GEM 4.15 and higher...

How can you track satellites with a Celestron GoTo telescope?

How can I mount my AstroMaster telescope’s counterweight if there is a m...

Remove the counterweight locking screw from the side of the counterweight. Use a flat head screwdriver that will easily fit into the counterweight shaft hole. Push the aluminum pin, so...