Abstract
Measurements performed at wavelength 1.18 cm during the September, 11, 1969, partial solar eclipse are described. No significant limb-brightening was detected. However, a high coronal contribution to the emission at this wavelength was observed. Separation between the emission from the center of a unipolar spot of diameter ≈ 1/2 to 1 arc min and its plage region of diameter ≈ 3 to 4 arc min was possible.
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El-Raey, M. Eclipse measurements near 1.2 cm wavelength on September 11, 1969. Sol Phys 16, 404–412 (1971). https://doi.org/10.1007/BF00162482
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DOI: https://doi.org/10.1007/BF00162482