Charles Dillon Perrine was an American astronomer born on March 19, 1867, in Newark, New Jersey. He is best known for his work at the Lick Observatory in California, where he made significant contributions to the study of planetary atmospheres and the discovery of several moons of Jupiter and Saturn. Perrine's most notable achievement was the discovery of the moon S/2000 J 11, which orbits Jupiter. He also played a key role in the development of astrophotography techniques, enhancing the ability to capture celestial images. Perrine passed away on December 22, 1951, leaving a lasting impact on the field of astronomy.