The hand control of my new scope shows the message “Bootloader invalid p...

It needs to be programmed using the Celestron Firmware Manager (CFM). Here's the download. 

The hand control of my new scope shows the message “Bootloader invalid p...

It needs to be programmed using the Celestron Firmware Manager (CFM). Here's the download. 

After performing an update, my hand control displays a different mount t...

You need to run Celestron Firmware Manager (CFM) and select “Mount type” under the “Hand Control” menu (as shown in the screenshot below). Do this without turning on the mount....

After performing an update, my hand control displays a different mount t...

You need to run Celestron Firmware Manager (CFM) and select “Mount type” under the “Hand Control” menu (as shown in the screenshot below). Do this without turning on the mount....

How do I program my Nexstar+ hand control?

Starting in late 2011, Celestron began shipping a new Nexstar+ (NexStar Plus) hand control with its computerized GoTo mounts. Besides having the new NexStar+ logo on the hand control below...

How do I program my Nexstar+ hand control?

Starting in late 2011, Celestron began shipping a new Nexstar+ (NexStar Plus) hand control with its computerized GoTo mounts. Besides having the new NexStar+ logo on the hand control below...

Why does my hand control show the message “There are no objects availabl...

Celestron’s NexStar hand control firmware uses both slew limits and filter limits to select observable objects among all objects in its database. These functions give lists of objects for alignment...

Why does my hand control show the message “There are no objects availabl...

Celestron’s NexStar hand control firmware uses both slew limits and filter limits to select observable objects among all objects in its database. These functions give lists of objects for alignment...

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....

How do I set RA limits for my Mount?

RA limits restrict the slewing and tracking movements of your mount to the east and west to prevent it from running into itself, the tube running into the mount or...

How do I set RA limits for my Mount?

RA limits restrict the slewing and tracking movements of your mount to the east and west to prevent it from running into itself, the tube running into the mount or...