Sunset, sunrise, twilight calculations in LC?

[Richmond]

On 23/08/14 15:13, FlexibleLearning.com wrote:
> Yes. I have done this. It is not a trivial exercise. It requires a lot of
> complex solar geometry calculations as well as Julian calcs.
>
> Go to http://www.esrl.noaa.gov/gmd/grad/solcalc, pick the "Solar
> Calculator", extract the javascript in the web page, then translate it to LC
> for use in your own work.
>
> You may be some time... I was! :)
>
> Hugh Senior
> FLCo
>
>

Julian Calendar?

http://en.wikipedia.org/wiki/Sunrise_equation

Richmond.