For all known astronomers.
“ The Astronomy department is a group of professors who teach Astronomy at Hogwarts School of...Astronomy department
“ [Source] Galileo Galilei was an Italian physicist, famous for his improvements to the telescope...Galileo Galilei
“ [Source] Carl Edward Sagan (9 November, 1934–20 December, 1996) was an American Muggle...Carl Sagan
“ [Source] Nicolaus Copernicus (b. 19 February, 1473—24 May, 1543) was a Polish polymath who...Copernicus