toolbox suncycle.m seems to do that...
Calculate sunrise and sunset time
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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,
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JEREMIE
el 18 de Jul. de 2012
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Star Strider
el 18 de Jul. de 2012
After I searched for and found that script, I discovered that Scripps Institute of Oceanography has a large collection of MATLAB files and toolboxes:
Tobias Piechowiak
el 16 de Sept. de 2015
Editada: Tobias Piechowiak
el 16 de Sept. de 2015
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
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