Y is positive towards you and negative away from you. The resources page is your guide to the plug-ins and browser versions that you need to completely use this program. It also has links to other utilities you may need. You could select it from the list, or from the world map, by clicking on the world map link, or just entering the exact latitude. Site Information Enter details of the site in the following tables.
Orientation is clockwise from North.
Summary Annual Values Check this if you want the summary tables for the entire year for the selected latitude. The values would be for the solstices and the equinox from 6 to 20 hours. The longest day of the year. In the Southern Hemisphere, the summer solstice occurs on December 21, and the declination angle is -23.45 degrees. Sunrise and Sunset Times and Azimuths Use this form to calculate the sunrise and the sunset times for a location and the azimuth at which the sun rises and sets.