Durchmusterung of selected areas between [delta]=O and [delta]=+90⁰
By: systematic plan by Edward C. Pickering, director of Harvard College Observatory, and J.C. Kapteyn ... director of the Astronomical Laboratory at Groningen
Contributors: Pickering, Edward C. (Edward Charles), 1846-1919; Kapteyn, J. C. (Jacobus Cornelius), 1851-1922
Series: Annals of the Astronomical Observatory of Harvard College -- v. 101
Publisher: Hoitsema Brothers
Published: 1918
Place of publication: Groningen
Language: eng
Number of pages: 368
Subjects: Stars; Observations
Notes: An account of the aim and scope of the work is given in "Plan of selected areas, by J.C. Kapteyn ... Pub. by the Astronomical Laboratory at Groningen, 1906."