Astronomical Alignment of the Big Horn Medicine Wheel

John A. Eddy was an astronomer, and this peer-reviewed article in Science is the standard scientific study identifying solstitial and stellar alignments in the Bighorn Medicine Wheel and comparable Plains stone structures. Its strength is that it is a rigorously peer-reviewed astronomical analysis published in one of the most selective general science journals, giving its specific alignment claims real methodological weight. Its limit is that it addresses the astronomical alignment itself, not the wheel's full ceremonial meaning to the peoples who built and use such structures, which the article does not claim to settle, so a claim about that ceremonial significance needs an ethnographic or tribal source alongside this astronomical study.