The New York Public Library has shared some astronomical drawings by E.L. Trouvelot done in the 1870s, comparing them to contemporary NASA images. They write,

Trouvelot was a French immigrant to the US in the 1800s, and his job was to create sketches of astronomical observations at Harvard College’s observatory. Building off of this sketch work, Trouvelot decided to do large pastel drawings of “the celestial phenomena as they appear…through the great modern telescopes.”

[Via]