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Hi Uri,
Welcome to the Forum!
First - phone inclinometer is not precise, especially near some mass of metal (which the scope is). Does your EQ (I assume) mount have a latitude scale? If not, buy a simple mechanical inclinometer off e-bay (10-15$). It's not hard to make the simplest one from a protractor.
The same goes for a compass. Don't put it on the tube. Magnetic declination figure for Melbourne is generally correct. Mind it, magnetic alignment is pretty rough - so you will need to adjust the view occasionally - depending on magnification.
Cheers,
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