In the same year, Arp was awarded the Newcomb Cleveland Prize for his address, "The Stellar Content of Galaxies", read before a joint session of the American Astronomical Society and AAAS Section D. In 1984, he was awarded the Alexander von Humboldt Senior Scientist Award.
Pada tahun yang sama, Arp diberi penghargaan Newcomb Cleveland Prize untuk pidatonya, "The Stellar Content of Galaxies", yang dibacakan di hadapan sesi bersama American Astronomical Society dan AAAS Section D. Pada tahun 1984, ia diberi penghargaan Alexander von Humboldt Senior Scientist Award.