Edward Emerson Barnard

Edward Emerson Barnard, an American observational astronomer, famously discovered Jupiter's fifth moon, Amalthea, in 1892. This was the first Jovian moon discovered since Galileo found the first four.

Barnard's Star is named after Edward Emerson Barnard, who measured the star's exceptionally high proper motion in 1916. It is a red dwarf star that moves very quickly across the sky relative to our solar system.

Yes, Barnard was a pioneer of astrophotography and produced incredibly detailed photographs of the Milky Way. His atlas of dark nebulae, published posthumously, proved that these dark patches were clouds of dust and gas rather than holes in the sky.

Barnard spent a significant portion of his career at the Lick Observatory in California before joining the University of Chicago. At Chicago, he used the massive 40-inch refracting telescope at the Yerkes Observatory for his photographic work.