Sun-spot bands which appear in the spectrum of a calcium arc burning in the presence of hydrogen
By: by Charles M. Olmsted ...
Series: Contributions from the Solar Observatory, Mt. Wilson, California.; no. 21
Published: 1908
Place of publication: [Chicago
Language: eng
Subjects: Spectrum analysis.
Notes: Cover-title.
At head of title: Carnegie Institution of Washington.
Reprinted from the Astrophysical Journal, vol. XXVII, p. 66-69, January, 1908.