How much can the CGX-L 925 HD carry?
The CGX-L carries 75 lbs and the 9.25" tube weighs 21 lbs. The CGX-L carries Celestron's largest optical tubes with ease.
How does the 0.49 arc-second resolution of the CGX-L 925 HD benefit planetary imaging of Jupiter or Saturn?
Every EdgeHD should resolve double stars to the Dawes limit (0.49 arc seconds here), show subtle shadings in Jupiter's belts and reveal the Cassini Division in Saturn's rings on a night of good seeing.
What does the 42mm image circle of the EdgeHD 925 mean for my full-frame camera?
EdgeHD is designed for a flat 42mm diameter field, and Celestron's final acceptance test checks every tube for sharp images at the center and each corner of a full-frame (24x36mm, 42mm diagonal) camera.
Is the CGX-L mount suitable for a remote or automated observatory?
Yes, it's an excellent choice for remote use. Home and limit optical sensors are among its remote-operation features, and CPWI controls the mount from a PC.
How does the included CPWI software differ from using the NexStar+ hand control?
The NexStar+ Hand Control is a self-contained unit for quick alignment and GoTo operation in the field. CPWI software runs on a PC with a graphical interface and advanced mount modeling.
What is the back focus of the 9.25" EdgeHD, and why is it important for imaging?
The optimal back focus for the 9.25" EdgeHD is 146.05mm (5.75") from the rear 3.29"-16 tpi threads. That is where the 925 forms its best images, within about ±0.5mm.
How portable is the Celestron CGX-L 925 HD system?
With a total weight of 141.8 lbs, this is not a grab-and-go system. However, it is designed to be transportable by breaking it down into its main components:
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Mount Head: 52.6 lbs (23.8 kg)
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Tripod: 46.2 lbs (21 kg)
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Optical Tube: 21 lbs (9.53 kg)
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Counterweight: 22 lbs
The CGX-L suits backyard observatories and remote imagers, and it has two carry handles.
Can I use this telescope for f/2 wide-field imaging?
Yes. The 9.25" EdgeHD is Fastar compatible: its secondary mirror can be replaced with a third-party lens accessory, sold separately, for ultra-fast f/2 wide-field imaging.
What power supply do I need for the CGX-L mount?
The mount needs 12V DC with at least 3 amps. Portable 12V field batteries work, and Celestron's AC to 12V DC 5A supply with a threaded barrel connector is recommended.
What is the purpose of the dual autoguide ports on the CGX-L?
The CGX-L has two autoguide ports to improve cable management. One is located on the main electronics panel, and a second is located near the dovetail saddle. This allows you to plug your guide camera into the port that results in the cleanest cable routing and minimizes the risk of snags as the telescope moves.
