The Sunís trajectory

The Sunís trajectory

Fig. 1.2 . The Sunís motion across the sky as seen from the Northern Hemisphere. The maximum height of the Sun in the sky, and the Sunís rising and setting points on the horizon, change with the seasons. In the summer, the Sun rises in the northeast, reaches its highest maximum height, and stays up longest. The Sun rises southeast and remains low in the winter when the days are shortest. The length of day and night are equal on the Vernal, or Spring, Equinox (March 20) and on the Autumnal Equinox (September 23) when the Sun rises exactly east and sets exactly west.

Copyright 2010, Professor Kenneth R. Lang, Tufts University