Monday, December 07, 2020

Around the Sun in 365 Days

PD: Earth/Sun is a brilliant 3D map which visualizes the orbital relationship between the Earth and the Sun. The map is a fantastic tool for learning about relative solar motion and visualizing the orbital relationship between the Earth and Sun at any time of the day and on any date of the year.

Earth/Sun is a WebGL powered interactive model of the orbital relationship between the Earth and the Sun. The map can provide a full 3D Sun-path diagram for any location on Earth. Using the Earth and Sun buttons (top-left) you can switch between a geo-centric or helio-centric view. Other options allow you to overlay a range of other information useful for understanding the relationship between the Earth and the Sun on top of the 3D map.

The information display at the top-left of the map show the currently selected location and time & date, and information on the time of Sun-rise and Sun-set, the length of daylight and the twilight times for the selected location and time. The buttons at the bottom-left of the map allow you to overlay information useful for understanding the Sun and Earth's orbital relationship. These buttons include options to overlay information on the Sun-path, Sun-beam and Twilight for the selected location and time.

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