Identifier: elementsofastro00youn (find matches)Title: The elements of astronomy; a textbookYear: 1919 (1910s)Authors:… https://www.rawpixel.com/image/9975709/image-face-person-artFree Image from public domain licenseUniverse stars night flyer template ad https://www.rawpixel.com/image/14776218/universe-stars-night-flyer-templateView licenseAstronomy: a chart of the constellations Great Bear and Little Bear. Engraving. https://www.rawpixel.com/image/13966151/astronomy-chart-the-constellations-great-bear-and-little-bear-engravingFree Image from public domain licenseAstronomy: stars in the night sky, with Encke's comet. Coloured engraving by J. Basire, 1851 after C. Piazzi Smyth. https://www.rawpixel.com/image/13951053/image-star-galaxy-spaceFree Image from public domain licenseStarry night over the mountain https://www.rawpixel.com/image/2256547/premium-photo-image-starry-night-galaxy-astronomyView licenseKirkjufell Northern lights, Iceland https://www.rawpixel.com/image/2044222/aurora-borealis-over-icelandView license