| 10%).
It looks like Brophy took Vega as his reference (Vega's distance/speed is accurately known) and calculated the others based on this measurement.
With the large margins of
| error, it's difficult to say whether the stones accurately represent the star distances, because there is no accuracy to begin with. I had assumed modern astronomy could tell the
They just discovered that betelgeuse is closer than they thought.
| distance of stars accurately - but without that data, I can't conclude if there is anything in this or not.
I guess it also varies over time, but maybe not enough to be significant over a few 100000 years.
