Summary of Mount Wilson magnetic observations of sunspots for November and December, 1944

N. P. Reprinted from the Publications of the Astronomical Society of the Pacific, 1945. 8vo, pp. [41]-52; original blue printed wrappers; contains two articles: Sunspot activity during 1994 and Visual magnitudes of nova puppis 1942. Reprinted from the Publications of the Astronomical Society of the Pacific, Vol. 57, No. 334, February 1945. Item #56950

Price: $25.00

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