Quote:
Originally Posted by Garbz
During the calibration does the star move out and come back to the same spot, and then move out and come back again?
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Yes it does. Actually it does this a lot, even when guiding. PHD never did it with the QHY5.
I thought it was just bad seeing and the star was jumping around, and due to the extra sensitivity of the lodestar, it was picking it up where as the QHY5 couldn't.
Quote:
Originally Posted by Garbz
I found I had a similar problem to yours when I pointed 11deg west of south rather than east of south (ironically enough given you're trying to do alignment). In that case the steps in one direction couldn't keep up with the star movement through the viewfinder so the star went out and never came back. I continuously cranked up my step size (mistake) and when it did finally calibrate I ended up with unusable tracking.
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I seem to be the exact opposite; my PHD keeps up with the star, really well. But this does give me something else to think about. The star is moving south due to its position, so maybe when it is calibrating, it is stepping the move to move due south, thus 'keeping up with the star'?
Quote:
Originally Posted by Garbz
When you turn all guiding off does your star move a lot in the PHD frame?
The other thing I found was good to debug was to select the RA / Dec overlay (can't remember what it's called exactly). But basically according to the guides I've read if it appears as a grid then it's good, but if it appears as a skew set of lines then your initial alignment is off (again doubt this is the case from what you're saying though).
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Thanks, ill try turning the grid on next time and having a look.
The star does move, a fair bit with nothing on.