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Aligning Wedge.jpg
02-05-2013 Adam Stuart

Aligning Wedge.jpg

Miami, FL

Tweaking the MEADE SuperWedge
Pointed scope at Meridian and +0 DEC. Found a mag 7.8 star and moved it to the right (west) side of FOV. GUIDE mode on LX200 hand controller. Integration set for 125 seconds. Five seconds to establish star image, and immediate press of West button for 60 seconds, followed by 60 seconds press of East button. Top tracing shows initial result. Star drift North over 60 second trace means Wedge is too far West, so adjustment in azimuth to move Wedge East. What you see is the angle of deviation. What we are trying to do is to make the angle of deviation a solid line. Notice that the initial star point is lower than where the exposure finished. The same steps are followed until a downloaded image shows that the angle of deviation has decreased to 0, with the West tracing superimposed on East tracing. I labeled my images a through g, so it took me roughly 25 minutes to tweak the Wedge.

Once you have the azimuth adjusted, you have to fix the altitude. To do this you simply move the telescope to a star along the Eastern horizon and at 0 degrees Dec.
The only difference this time is that we adjust the altitude instead of the azimuth. The images will be identical when adjusting the altitude. However, you will have to adjust the altitude accordingly. Here you will either raise or lower the altitude until the star trail is a single solid line. If done correctly, you will have a very accurately aligned telescope.


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