New Hampshire Astronomical SocietyJune 29th in Astronomy and Space Science
 | 1868 | American astronomer George Ellery Hale born. Hale was instrumental in the founding the Yerkes Observatory in Williams Bay, Wisconsin, he was the first professor of astrophysics at the University of Chicago, and was the first astronomer to be officially called an astrophysicist. At the age of 21 he invented the spectroheliograph, which made it possible to photograph the Sun's prominences in full daylight. He later founded the Mt. Wilson Observatory near Pasadena, California. |
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