beckerrarebooks:Maybe we should try to make Celestial Sundays a thing? This gorgeous engraving is fr
beckerrarebooks:Maybe we should try to make Celestial Sundays a thing? This gorgeous engraving is from Pere Cherubin d'Orleans’s La dioptrique oculaire. This 17th century work focuses on the study of optics and includes information on telescopes. Telescopes, of course, go hand-in-hand with astronomy, and are crucial for making accurate observations of the surface of the moon. The cherubs in the corners would probably agree with that sentiment! -- source link