https://creativecommons.org/publicdomain/zero/1.0/ https://www.rawpixel.com/image/429671 Sidney Hall’s (1831) astronomical chart illustration of the Hercules and the Corona Borealis. Original from Library of…

Sidney Hall’s (1831) astronomical chart illustration of the Hercules and the Corona Borealis. Original from Library of Congress. Digitally enhanced by rawpixel.

Free Public Domain CC0 Image

View license