Variations in the thermodynamic state of the chromosphere over the sunspot cycle
By: by R.G. Athay, D.H. Menzel, and F.Q. Orrall
Contributors: Menzel, Donald Howard, 1901-; Orrall, Frank Quimby
Series: Scientific report / Harvard University, Solar Department of Harvard College Observatory -- no. 46; AFCRC-TN -- 57-223; Scientific report (Harvard College Observatory. Solar Department) -- no. 46; AFCRC-TN (Series) -- 57-223
Publisher: Solar Dept. of Harvard College Observatory, Harvard Univ.
Published: 1957
Place of publication: Cambridge, Mass.]
Language: eng
Number of pages: 50
Subjects: Solar chromosphere; Solar Spectrum; Sunspots; Spectra; Solar eclipses; Observations
Other titles: Thermodynamic state of the chromosphere; Smithsonian contributions to astrophysics.
Notes: Title from cover.

"Reprinted from: Smithsonian contributions to Astrophysics, volume 2, Number 4, Washington, D. C., 1957"--p. 35."

"Published under ARDC contract AF19(604)-146."

"AD 133 695."

Includes bibliographical references (p. 50).