My Celestron mount slews in the wrong direction. Is this an encoder prob...

It could be an encoder problem. The encoder is a light-emitting diode (LED) device that measures how much the motor has turned. Try this general test of the encoders:For Alt-Azimuth...

My Celestron mount slews in the wrong direction. Is this an encoder prob...

It could be an encoder problem. The encoder is a light-emitting diode (LED) device that measures how much the motor has turned. Try this general test of the encoders:For Alt-Azimuth...

How accurate is my Advanced Series GT mount's alignment?

Go to Scope Setup> Mount Settings to find out. Cone Value gives the cone error found once calibration stars were added to the alignment. It should be less than ½-degree....

How accurate is my Advanced Series GT mount's alignment?

Go to Scope Setup> Mount Settings to find out. Cone Value gives the cone error found once calibration stars were added to the alignment. It should be less than ½-degree....

The declination motion of my CGE mount is getting progressively slower -...

It could be the cable or it could be the encoder for the DEC motor. Switch the RA and DEC cables to see if this helps. Examine the DEC cable...

The declination motion of my CGE mount is getting progressively slower -...

It could be the cable or it could be the encoder for the DEC motor. Switch the RA and DEC cables to see if this helps. Examine the DEC cable...

How do I improve my telescope's GoTo performance?

There are a number of techniques and functions you can use to improve the accuracy of your GoTo telescope’s performance and accuracy. Here is a summary to improve your GoTo...

How do I improve my telescope's GoTo performance?

There are a number of techniques and functions you can use to improve the accuracy of your GoTo telescope’s performance and accuracy. Here is a summary to improve your GoTo...

How do I collimate my telescope by using the stars?

Night Time Star CollimationAfter successfully completing daytime collimation, night time star collimation can be done by closely adjusting the primary mirror while the telescope tube is on its moun...

How do I collimate my telescope by using the stars?

Night Time Star CollimationAfter successfully completing daytime collimation, night time star collimation can be done by closely adjusting the primary mirror while the telescope tube is on its moun...

How do I collimate my Schmidt-Cassegrain telescope (SCT)?

Collimation of a SCT is critical to getting the sharpest images possible, especially when viewing planets at high magnification. There are three stages to a really good collimation using the...

How do I collimate my Schmidt-Cassegrain telescope (SCT)?

Collimation of a SCT is critical to getting the sharpest images possible, especially when viewing planets at high magnification. There are three stages to a really good collimation using the...