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snorkeler
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I have an iPad app almost complete that displays live weather data from my home weather station here in Hawaii for community use.
I'm showing a picture of the moon phase, and a UPS freight pilot friend who flies at night pointed out that the conventional vertical phase orientation is inaccurate.
In order to rotate the pictures, I would need a formula to calculate the angle of tilt for our 20° latitude at time of moonrise, and I suppose time of moonrise also. This is outside my area of expertise...can someone point me in the right direction?
I'm showing a picture of the moon phase, and a UPS freight pilot friend who flies at night pointed out that the conventional vertical phase orientation is inaccurate.
In order to rotate the pictures, I would need a formula to calculate the angle of tilt for our 20° latitude at time of moonrise, and I suppose time of moonrise also. This is outside my area of expertise...can someone point me in the right direction?