A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Frank Reed
Date: 2020 Nov 17, 14:43 -0800
David P., you wrote:
"This doesn’t fit with anything in our solar system"
Nothing natural, that is! It's aliens.
Actually my guess, for now, with no real evidence, is that these were charts prepared for visual satellite trackers in the 1960s as part of "Project Moonwatch".