RUG faculteit wiskunde en natuurwetenschappen sterrenkunde

The Blaauw Collection



Title Determination and discussion of the spectral classes...
Author Bruggencate, G.H. ten
Date 1920-06-24
Institute Rijksuniversiteit Groningen
Supervisor Prof. Dr. J.C. Kapteyn
Cat. number 9
Remarks Full title : Determination and discussion of the spectral classesof 700 stars mostly near the North Pole

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