Celestron AVX All Star Polar Alignment question
Posted 05 June 2014 - 02:05 PM
I'm hoping it can improve my pointing accuracy. I have a limited view of the sky (there always seems to be a tree between me and a recommended alignment star ). Will ASPA help in this regard?
Posted 05 June 2014 - 02:43 PM
The aspa won't matter as much at the beginning of your session as it does at the end. After you have gone through the alignment and the aspa then have it goto some object that you will know when you are on it. Then do a sync to that object and all other gotos should be right on the money from that point.
Posted 05 June 2014 - 02:48 PM
It's very straight forward. You just need to use a named star relatively close to the celestial equator high in the south. In this position the alt az motions of the mount make the movements of the star more straightforward.
Posted 05 June 2014 - 05:34 PM
I've had my AVX for just a couple months now. I was hesitant to try ASPA because the goto was working great with a standard Two Star Align.
Do a Two Star Align and add 3 or 4 calibration stars. Press Align and then the down arrow twice, that should display Polar Align. Press Enter then down arrow once, it should say Align Mount. Press Enter.
It will display a warning. If you press enter it will slew to a star. When it's finished use the Altitude and Azimuth knobs at the base of the mount to center the star in the eyepiece. When you're done, your mount is aligned to north.
Return to the home position and turn off the mount. Turn it back on and do another Two Star Align with 3 or 4 calibrations stars. You're done.
Goto's will be much better now.
After I had done mine I marked circles on the ground in my driveway where the tripod legs go.
Good luck and have fun.
Posted 05 June 2014 - 05:39 PM
Posted 06 June 2014 - 05:32 PM
Next clear night I get, I'll try it. I may have more questions after that.