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not sure (1)

stoolpigeon (454276) | more than 3 years ago | (#34623710)

this site seems to be able to get you where you want to go - they say it's done with javascript, which means you should be able to look at their code. []

Not Javascript (1)

LordBodak (561365) | more than 3 years ago | (#34651460)

There's an Arduino library called Time Lord [] that will calculate sunrise and sunset times with a given lat/long. It's C++ but it looks like it wouldn't be too hard to convert just that calculation.

Re:Not Javascript (1)

Le Marteau (206396) | more than 3 years ago | (#34654920)

Thanks, Gents...

stoolpigeon's recommendation works, but it was copyrighted (which I didn't say was an issue, but it is). Translating from C++ was option "B" on a number of fronts.

But I did find a Perl package which works beautifully and is free: Astro-satpass [] which can give the position of the sun, moon, planets, and even satellites, based on time, latitude, longitude and elevation.

Re:Not Javascript (1)

Le Marteau (206396) | more than 3 years ago | (#34655028)

Hmmm... link does not work. Anyway, it's findable at, search for "Astro-Satpass"

And it gives star positions, too.

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