CELESTRON EDGE HD 1100 Guiding

If you look into the real specifics of auto-guiding a telescope, it's quite amazing.

After vertically & horizontally balancing the scope with 4.5 lbs. the tracking improved dramatically. Then adding 3 lbs. to the west mount, dialed it in.  Starizona instructions for balancing a fork-mounted telescope provides a good guide.

with the off-axis guider, the guide camera tracks stars near the edge of the mirror. Since using the focuser's USB, the connection is very stable with Celestron's CPWI software.

PHD Guiding 2 simplifies the magic of making RA / DEC adjustments. 

Gravity pulls and flexes the telescope depending on it's pointing position in the sky. The atmosphere is constantly moving affecting the guide star brightness.

This goes on as the guide camera tracks with an accuracy of about 3-9 microns. A human hair is ~ 15 microns wide.

 Wireless Telescope Control

• 42" wireless display monitors the guiding from indoors
• remotely adjust the camera and guiding
• only need to go outside, if an issue arises
• works great for my all night freezing sessions!

Celestron .7x reducer lens (4) provides 43% wider FOV over f/10, plus the stars stay sharp at the image edges.

(5) Celestron Off-Axis Guider (OAG), a 12.5 mm adjustable prism, helical focuser, and the guide body can be rotated which is a plus!

(6) ZWO Filter Drawer for the 2" filters

(7) ZWO ASI290MM guide camera