
Solar declination Solar Declination is Sinusoidal To understand the calendar theoretically, we need to study the sun’s declination and its altitude over the course of a year. Solar declination is the angle between the sun’s rays and the plane of the earth’s equator. It is shown above as 23.4 degrees for summer solstice when the sun […]
Calendar: 3 Sinusoidal Sun, Lahaina Noon, and Six Seasons — Iwaya-Iwakage of Kanayama Megaliths