Article - The first measurement of a star's size

[DaveE]

A bit of physics history in this article. How Michelson (yes, that Michelson) measured the first stellar diameter (ok, except for the sun) at the Mt. Wilson Observatory.

https://www.mtwilson.edu/wp-content/uploads/2019/12/50971-MtWilson-proof.pdf

 

[DaveE]

Mt. Wilson this afternoon (9-18-2020):

 

[berkeman]

Mt. Wilson this afternoon (9-18-2020):
View attachment 269668

Yep!

https://www.physicsforums.com/threa...-observatory-is-in-the-path-of-bobcat.993716/