A planetarium software that shows a 3D simulation of the night sky
Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulae and others things like ground, landscape, atmosphere, etc.
Calculate Sunrise, Sunset and dawn times. The calculation based on sunriset by Paul Schlyter.
64 bit windows users: There are 64 bit windows binarys in the file section.
SolarBeam is a desktop application for drawing solar diagrams. You supply the geographical position, it draws a diagram showing the Sun's trajectory over your location at various times of the year. It also shows the times of sunrise and sunset.
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