Rabih Alameddine@rabihalameddine·Nov 26, 2018The first known photograph of a comet. Donati’s Comet, taken at Harvard College Observatory in 1858.22081
Rabih Alameddine@rabihalameddineThe Sun’s Corona during the Eclipse of July 39, 1878 – Illustration from ‘Astronomy for high schools and colleges’4:10 PM · Nov 26, 2018·Twitter Web Client4 Retweets33 Likes