About Halton Arp
Halton Christian "Chip" Arp was an American astronomer. He is remembered for his 1966 book Atlas of Peculiar Galaxies, which catalogued unusual-looking galaxies and presented their images. Arp compiled a catalog of unusual galaxies titled Atlas of Peculiar Galaxies, which was first published in 1966. His bachelor's degree was awarded by Harvard (1949), and his PhD by Caltech (1953). During the 1950s bright radio sources, now known as quasars, had been discovered that did not appear to have an optical counterpart. Arp became a research assistant at Indiana University in 1955, and then in 1957 became a staff member at Palomar Observatory, where he worked for 29 years.
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