Hi Guys,
This Moonrise/Moonset Calculator is based on an old BASIC program that has been floating about the net for years.
All I know is that it was printed in an old astronomy magazine, and it works. It is available on the net here:
http://www.schoepski.com/states/illi...e/moonrise.htm
and that is the original program that I have translated for Commodore 64 BASIC to produce this C64 program file.

It's ready to run on the PSPVice emulator for the Sony Playstation Portable.
PSP Vice for the PSP can be downloaded here:
http://perso.numericable.fr/~ckckck/C64_PSPVice.html

All testing with this program was done with PSPVice version 1.2 (Jan '08) as is the current version available from the website.

At some stage, I will probably port this to C, and include it into my Time Baby Clock program.
Look out for Time Baby V9b. It corrects a moon phase calc bug.

Oh yeah, I forgot to mention, if you want the source code, just type LIST once it's finished running!
Cheers, Art.