Calculate sunrise and sunset time

Hi all,

I wish to know if it's possible to calculate sunrise and sunset time using one date/time and geographical position ? Maybe a toolbox already exists ?

Thanks,

Answer 1

[JEREMIE]

toolbox suncycle.m seems to do that...

[Star Strider]

After I searched for and found that script, I discovered that Scripps Institute of Oceanography has a large collection of MATLAB files and toolboxes:

http://mooring.ucsd.edu/index.html?main/software.html

Answer 2

[Meysam Mahooti]

https://www.mathworks.com/matlabcentral/fileexchange/60157-sunrise-sunset

https://www.mathworks.com/matlabcentral/fileexchange/55312-sunrise-sunset

https://www.mathworks.com/matlabcentral/fileexchange/59903-nrel-s-solar-position-algorithm-spa

https://www.mathworks.com/matlabcentral/fileexchange/60055-planets-rise-set

https://www.mathworks.com/matlabcentral/fileexchange/55257-sun-moon-rise-set

https://www.mathworks.com/matlabcentral/fileexchange/61904-soltrack

Answer 3

[Tobias Piechowiak]

The connection between hour angle H, latitude phi and declination of sun delta is: cos(H) = -tan(phi)*tan(delta). delta can be approximated by: delta = sin(T)*23.5 where T is time from 21th, March or 23rd, September in days. Gives good enough results +- 20 min when you assume that H is 0 deg at noon.

Greetings