Sunrise Sunset

Rising and setting times of the Sun and the Moon and twilight times

Year, month, day, lambda (Geographic east longitude of the observer in [deg]), phi (Geographic latitude of the observer in [deg]), zone (local time - universal time in [h]), and twilight (Indicates civil, nautical or astronomical twilight) are received, then rising and setting times of the Sun and the Moon and twilight times are computed.

The positions of the Sun and the Moon are computed using Jet Propulsion Laboratory Development Ephemeris (DE440).

east longitude and latitude of the observer can be found at:

https://www.gaisma.com/en/dir/001-continent.html

References:

Montenbruck O., Pfleger T.; Astronomy on the Personal Computer; Springer Verlag, Heidelberg; 4th edition (2000).

Vallado D. A.; Fundamentals of Astrodynamics and Applications; McGraw-Hill, New York; 4th edition (2013).

https://ssd.jpl.nasa.gov/planets/eph_export.html

http://celestrak.org/SpaceData/EOP-All.txt