Template:Are You Sure/June 1

From Gnomon Chronicles
< Template:Are You Sure
Revision as of 06:23, 1 June 2021 by Admin (talk | contribs) (Created page with "... that astronomer and academic '''Geminiano Montanari''' made the the observation that Algol in the constellation of Perseus varies in b...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

... that astronomer and academic Geminiano Montanari made the the observation that Algol in the constellation of Perseus varies in brightness?