The elements of astronomy; a textbook (1919) chromolithograph art by Charles Augustus. Original public domain image from… https://www.rawpixel.com/image/10184816/image-cloud-moon-spaceFree Image from public domain licenseIdentifier: elementsofastro00youn (find matches)Title: The elements of astronomy; a textbookYear: 1919 (1910s)Authors:… https://www.rawpixel.com/image/9975792/image-cloud-art-spaceFree Image from public domain license