High Quality Content by WIKIPEDIA articles! The 1965 Houston Astros season was the franchise`s first season in the Houston Astrodome, as well as its first season as the Astros after three seasons known as the Colt .45s. It involved the Houston Astros finishing in ninth place in the National League with a record of 65-97, 32 games behind the eventual World Series champion Los Angeles Dodgers. The Astros were managed by Lum Harris.