The Apollo 11 Lunar Lander is shown on the surface of the moon in 1:1 scale in the Solar System AutoCAD sample drawing from the early 80s. Its a well known fact that Autodesk founder John walker is big into astronomy, and accuracy being a key part of that. I have heard in an early AutoCAD release that bug reports were filed by people reporting a wobble of shadows in rendering with sunlight. It was not a bug, being accurately simulated the earths planetary wobble “Chandler Wobble” was properly considered in the AutoCAD rendering engine. John even wrote the interactive web based Solar System Live and Earth and Moon Viewer.
Back in AutoCAD version 2.18, Autodesk placed a sample drawing with AutoCAD named the Solar.DWG to demonstrate the precision of AutoCAD back in the early eighties. AutoCAD was based used 64bit floating point precision and the most accurate back then instead of like another CAD package that made you draw at other than 1:1 scale. With this Solar DWG you can see…