FSEG - Fast Sun-Earth Geometry

A library on sun position and sunlight analysis from the observer's viewpoint, which comsists of a simplistic python frontend and an extensible C++ backend.

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Features & Algorithms

• Topocentric Sun Position:

  • SPA¹
  • SG2

Supported Platforms

• MacOSX-10.12-x86_64
• Ubuntu-20.04-manylinux_x86_64
• Windows-2022-win_amd64 [Compatiblity with windows is forgone at v0.8.0, due to huge discrepancy against unix-like system]

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1. Reda, I.; Andreas, A. (2003). Solar Position Algorithm for Solar Radiation Applications. 55 pp.; NREL Report No. TP-560-34302, Revised January 2008. ↩