Astronomer Annie Jump Cannon was born OTD in 1863. She was a pioneer of stellar classification and co-creator of the Harvard Classification Scheme. Over her lifetime she *manually* classified around 350,000 stars. 🧪 🔭 👩‍🔬 Image: Harvard University, Radcliffe Archives

Plus she had a cool name. Sounds like some sci fi shit. A cannon that fires your ship into space

I feel bad for her that this is something we can now do automated in essentially a few hours

Odd Salon had a talk about her just last week. :) oddsalon.com

Odd Salon

Stories from the odd corners of history, science, art, and adventure: Monthly live cocktail hour salons in San Francisco & New York City