Phone compass systems do not work.
An iPad is slightly better but still not accurate enough.
Only a 3 satellite GPS system will get you close enough to find octans in the viewer.
Quote:
Originally Posted by Rerouter
Will give it a try on the next clear night, as for today I worked out when solar noon would be and found my actual north / south direction line, placed the south leg on the line and measured out the distance between the tripod legs to be equal length to a point on that line, Now have marks set out for the next night.
Turns out I was like 18 degrees off, and that my trust in phone magnetometers has drastically fallen, I should have caught on earlier that rotating the phone 180 degrees offset the reading by about that much.
Based on how I did it, I should now be within 10 arc minutes for north / south, which should make things much easier, and leave drift analysis for a trim,
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