Harvard College Observatory (Corporate Name)
- Harvard Observatory
- Harvard University. Astronomical Observatory
- Earlier heading: Harvard University. Observatory
- Henry Draper Memorial
- Harvard University. Henry Draper Memorial
- Harvard-Smithsonian Center for Astrophysics. Harvard College Observatory
- HCO
Harvard College Observatory; the first century, a review of the past and a preview of the future, 1946
The Telescope, March-April, 1935: p.i (Harvard Observatory)
SAO website, November 13, 2013: home page (the Smithsonian Astrophysical Observatory (SAO) ... is joined with the Harvard College Observatory (HCO) to form the Harvard-Smithsonian Center for Astrophysics (CfA))
Its website, November 13, 2013: home page (Harvard College Observatory (HCO), founded in 1839; collaborates with the Smithsonian Astrophysical Observatory (SAO) at the Harvard-Smithsonian Center for Astrophysics (CfA))
Centerline (Cambridge, Mass.), June 1974: [page 1] (... on July 1, 1973, President Derek Bok of Harvard University and Secretary S. Dillon Ripley of Smithsonian Institution brought forth in Cambridge a new organization known as the Center for Astrophysics, a joint enterprise designed to coordinate the related research of the Harvard College Observatory and the Smithsonian Astrophysical Observatory under a single director ...)