What is the threading on the outside of my Celestron GoTo mount’s power ...

Many of Celestron’s GoTo mounts use the same power jack. These jacks are threaded on the outside. The threading is M8x0.75.On the CGEM, CGEM DX and the CGE Pro, power...

What is the threading on the outside of my Celestron GoTo mount’s power ...

Many of Celestron’s GoTo mounts use the same power jack. These jacks are threaded on the outside. The threading is M8x0.75.On the CGEM, CGEM DX and the CGE Pro, power...

How can I make my own collimating tool to use with my Newtonian reflector?

There are several ways to do-it-yourself when it comes to collimating tools. The easiest way is to drill a 1/16” to 1/8” hole in the center of your eyepiece drawtube...

How can I make my own collimating tool to use with my Newtonian reflector?

There are several ways to do-it-yourself when it comes to collimating tools. The easiest way is to drill a 1/16” to 1/8” hole in the center of your eyepiece drawtube...

Why can’t I find the moon and planets with my SkyProdigy?

If your SkyProdigy can locate deep-sky objects but can’t find the moon and planets, check your mount’s real-time clock (RTC). The RTC keeps Universal Time (UT), widely used by astronomers....

Why can’t I find the moon and planets with my SkyProdigy?

If your SkyProdigy can locate deep-sky objects but can’t find the moon and planets, check your mount’s real-time clock (RTC). The RTC keeps Universal Time (UT), widely used by astronomers....

What is Periodic Error (PE)? And how do I correct it?

Periodic error (PE) is the name for the inevitable small mechanical errors that occur in the drive gearing as the scope is tracking during long-exposure imaging. Since these errors are...

What is Periodic Error (PE)? And how do I correct it?

Periodic error (PE) is the name for the inevitable small mechanical errors that occur in the drive gearing as the scope is tracking during long-exposure imaging. Since these errors are...

I travel a lot or live overseas where the line or mains voltage is 220 v...

Use our model #18780. It’s a switching-type AC-to-DC power adapter that provides more power with less weight than a transformer-style power adapter. An additional advantage is it uses AC input...

I travel a lot or live overseas where the line or mains voltage is 220 v...

Use our model #18780. It’s a switching-type AC-to-DC power adapter that provides more power with less weight than a transformer-style power adapter. An additional advantage is it uses AC input...

Can the SkyProdigy mount be used with other telescope optical tube assem...

Yes it can! However, you should be aware of the following points.First, the SkyProdigy mount is designed to be used with tubes with Vixen-style 1.75 in dovetail bars on the...

Can the SkyProdigy mount be used with other telescope optical tube assem...

Yes it can! However, you should be aware of the following points.First, the SkyProdigy mount is designed to be used with tubes with Vixen-style 1.75 in dovetail bars on the...