Effective wavelengths of stars in the Pleiades from plates taken at Mount Wilson
By: by Ejnar Hertzsprung.
Series: Memoires de l'Academie royale des sciences et des lettres de Danemark, Copenhague, Section des sciences -- 8me serie, t. IV, no. 4 = D. Kgl. Danske Vidensk. Selsk. Skrifter, Naturvidensk. og Mathem ; Afd., 8 Raekke, IV. 4
Publisher: F. Host
Published: 1923
Place of publication: Kobenhaven
Language: eng