Journal of the zone observations of stars between 49⁰50' and 55⁰10'of north declination in 1855.0 and observed with the meridian circle during the years 1870 to 1875 [and 1875 to 1885] under the direction of Joseph Winlock and Edward C. Pickering, successive directors of the observatory
By: By William A. Rogers ... Printed from funds resulting from the will of Josiah Quincy, Jun. ...
Series: Annals of the Astronomical Observatory of Harvard College -- v.35-36
Publisher: Printed at the office of the Waterville Mail
Published: 1894
Place of publication: Waterville, Me
Language: eng
Subjects: Stars; Observations