Hannah Steele Pettit (November 6, 1886 – September 10, 1961), also known as Hannah Bard Steele Pettit, was an American astronomer who spent a notable amount of her career working as an assistant at the Yerkes Observatory, where she and her husband Edison Pettit jointly published photographs on the corona of a solar eclipse.
[1] Hannah Steele Pettit was born in Coatesville, Pennsylvania on November 6, 1886.
[2] Pettit studied at Swarthmore College, where she received her Bachelor of Arts in astronomy in 1908 and her M.A.
She went on to receive her Ph.D. in astronomy from the University of Chicago in 1919,[2] completing her dissertation on "Proper motions and parallaxes of 359 stars in the cluster h Persei.
[4] She died in Los Angeles, California on September 10, 1961, at the age of 74, after suffering a severe stroke.