pvlib.solarposition.hour_angle¶
-
pvlib.solarposition.
hour_angle
(times, longitude, equation_of_time)[source]¶ Hour angle in local solar time. Zero at local solar noon.
Parameters: - times (
pandas.DatetimeIndex
) – Corresponding timestamps, must be localized to the timezone for thelongitude
. - longitude (numeric) – Longitude in degrees
- equation_of_time (numeric) – Equation of time in minutes.
Returns: hour_angle (numeric) – Hour angle in local solar time in degrees.
References
[1] J. A. Duffie and W. A. Beckman, “Solar Engineering of Thermal Processes, 3rd Edition” pp. 13, J. Wiley and Sons, New York (2006) [2] J. H. Seinfeld and S. N. Pandis, “Atmospheric Chemistry and Physics” p. 132, J. Wiley (1998) [3] Daryl R. Myers, “Solar Radiation: Practical Modeling for Renewable Energy Applications”, p. 5 CRC Press (2013) - times (