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Results are given in the following units: Equation of Time in minutes of time; Solar Declination in degrees, with positive to the north; Azimuth in degrees clockwise from north; Elevation in degrees up from the horizon; Cosine of Solar Zenith Angle is unitless.
- Sunrise/Sunset Calculator
We maintain this page as a courtesy to those people who, for...
- Solar Calculator Links
Solar Calculator Links Please note: inclusion in this list...
- Time Zone Table
GML conducts research on greenhouse gas and carbon cycle...
- Calculation Details
The NOAA Solar Calculator is for research and recreational...
- Solar Calculator Glossary
Click on Solar Declination Graph to see how the solar...
- Sunrise/Sunset Calculator
26 kwi 2021 · April 26, 2021. The solar declination angle is a concept of astronomy, but its understanding is also helpful in solar energy and photovoltaic (PV) systems. Solar declination angle calculator. Select the date, time, and your time zone to compute the declination angle in the degree. Select date: Enter time: Select time zone: Solar declination:
SPA Calculator. Compute the solar position from universal time. and location using NREL's Solar Position Algorithm (SPA). Required input values: Enter start date: Year: Month: Day: Enter end date: Year: Month: Day: Select option for time output:
Drag the large red pin to the desired location and enter the date and time at which to calculate the sun position.
SunCalc shows the movement of the sun and sunlight-phase for a certain day at a certain place. You can change the suns positions for sunrise, selected time and sunset see. The thin yellow-colored curve shows the trajectory of the sun, the yellow deposit shows the variation of the path of the sun throughout the year.
While the program quotes results to arc-second precision, a precision of 0.1 degrees (6 arc minutes) is quite sufficient in most contexts. The program applies a mean refraction correction to the observed altitude and (for geocentric lunar declinations) mean lunar parallax.
On-line calculators to estimate current and past values of the magnetic field. If you want only the magnetic declination (variation) for a single day between 1900-present, visit our declination calculator.