Lewis Swift was an American astronomer born on November 24, 1820, in New York. He is best known for his discoveries of several comets, including Comet Swift-Tuttle, which is notable for its periodic return every 133 years. Swift's work contributed significantly to the field of astronomy during the 19th century. In addition to his comet discoveries, Swift was also involved in the study of nebulae and star clusters. He published numerous papers and observations, helping to advance the understanding of celestial objects. Swift's contributions have left a lasting impact on the field of astronomy, inspiring future generations of astronomers.