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Quality check after using PoleMaster.
First image : Screenshot of PHD2 showing a pretty flat (red) line for the Dec. track – almost certainly the only guiding adjustments needed were caused by air turbulance. Compare the sinuous (blue) line for the R.A. track probably due to periodic error in the mount.
Second image : Unguided 20 minute exposure of a random part of the sky at -52deg declination. Image scale 1deg:18' x 59'.
Third image : The same second image with a superimposed 10 second exposure of same star field during which the mount was slewed in R.A. The star trails thus show the R.A. orientation of the second image. This reveals no obvious drift in Dec. and a small drift in R.A. probably due to the periodic error evident in the PHD2 screenshot.
It's pretty clear that these results indicate excellent polar alignment.
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