How to Calculate the Sun's Declination
The declination of the Sun is the angle between the light rays from the Sun and the Earth's equator. Since the Earth is tilted on its axis and rotates every year, the angle of declination changes throughout the year. Every year the solar declination goes...

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Difficulty:
Moderate

Source:
www.ehow.com

en.wikipedia.org/wiki/Position_of_the_Sun

The declination of the Sun, δ☉, is the angle between the rays of the ....
calculation of the Equation of Time, which is described here.

www.pveducation.org/pvcdrom/properties-of-sunlight/declination-angle

The rotation of the Earth around the sun and the change in the declination angle
.... The variatious ways of calculating the declination angle are graphed below ...

www.itacanet.org/the-sun-as-a-source-of-energy/part-3-calculating-solar-angles/

The declination angle is described in figure 1.5 and 1.6. The equation used to
calculate the declination angle in radians on ...

www.esrl.noaa.gov/gmd/grad/solcalc/azel.html

Back when this calculator was first created, we decided to use a .... in minutes of
time; Solar Declination in degrees, with positive to the north; Azimuth in degrees
...

www.usc.edu/dept-00/dept/architecture/mbs/tools/thermal/solarbasic.html

Declination is the angular distance of the sun north or south of the earth's equator
. ... Note that in this calculation, Southern Hemisphere observers will compute ...

www.usc.edu/dept-00/dept/architecture/mbs/tools/thermal/sun_calc.html

Declination, degrees (positive is Northern Hemisphere). Altitude Angle, degrees.
Azimuth Angle, degrees (positive indicates east of south). Time of Sunrise

www.susdesign.com/popups/sunangle/declination.php

Declination is the angular distance of the sun north or south of the earth's equator
. ... a more sophisticated algorithm for declination calculations than this method, ...

www.reuk.co.uk/wordpress/solar/solar-declination/

Don't worry, you do not need to get out your calculator. Below is a table of
approximate solar declination values for every day of the year, calculated using
the ...

www.sunearthtools.com/dp/tools/pos_sun.php

Calculation of sun's position in the sky for each location on the earth at any time
of day. Azimuth, sunrise sunset noon, daylight and graphs of the solar path.