In tutorial
"Advanced Calculations: Rise/Set Criteria
Getting the Times of Rise and Set When the Horizon Is Not Level"
Standard times of Sun and Moon rise and set assume a level horizon ... Suppose, for example, that the hills to the east have an altitude of 3° and the mountains to the west have an altitude of 8°. "
Ok.. how does one measure this?
Is there an inexpensive instrument?
I'm located in Sedona Az, and discovered this calculator last year. It has been very useful, but when down in the bottom of the Oak Creek, with high Cathedral Rock above, I missed the correct location this past summer because the fly by seat 'guess' was off on where the moon would rise in relationship for the picture.
I understand that elevation here 3500-4000+ feet is part of the computation, but how does one measure the altitude of the ridges to put into the calculation.
Thanks p.
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