American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Local Coordinates Model
This astronomy simulation presents stars in their Altitude/Azimuth coordinates serving as an introduction to the celestial globe and equatorial coordinates.
The National Gallery (UK)
The National Gallery: Celestial Globe
As part of a larger exhibit on science and the history of scientific instruments, this site examines a detail from a painting by Olivier van Deuren which features a celestial globe. The globe is only one feature of the larger, more...