The Sun Charts How the Sun Works

For our purposes, it is convenient to assume that the earth is stationary and the sun is in motion around the earth. Figure V-1 lists the angle (declination) of the sun above (+) or below (-) the equator, on the twentieth of each month, as seen from the earth. From the Northern Hemisphere, you can … Read more

Sundials Earth’s Declination

K.P. Cheung, Department of Architecture, The University of Hong Kong,Pokfulam Road, Hong KongThis page started in July 1997 TABLE 1 – Mean value of the solar declination (for l99l, noon UT (GMT), adapted from TheNautical Almanac l99l, HMSO, UK, p.10-253)