Author: Oosterhoff, P. Th.
Title: A Study of the Double Cluster in Perseus, based on Photographic Magnitudes & Effective Wavelengths derived from Plates taken...
Description: Haarlem, Enschede & Zonen, 1937. orig.wrappers. 29x23cm, 119,(4) pp, Full title concludes: "...taken by E. Hertzsprung at the Potsdam & Mount Wilson Observatories".. 4 plates,textual tables. Some minor rubbing, VG. ¶ Series: Annalen van de Sterrewacht te Leiden,Deel XVII, 1e stuk.

Keywords: Astronomy, , , , , , , ,