Bearing to sunrise & sunset.


Does anyone know of a program for the hp-48gx or hp-49, or alternately just an equation, which will allow the followinmg to be calculated?

Given a location on earth in degrees lat. & long. & the date, calculate the true bearing to where the sun will rise & set on that date. If the times of sunrise & sunset are also calculated, that would be even better.

I have checked the selection of programs available on but did not find anything similar.

Thank you for any information you can offer.



A simple google search yields lots of results. This looked appropriate:


there's a basic program on Sky and Telescopes web page that does but you'd have to translate it.

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