Abstract
As a preparation for the observational program of the first flight of the ‘Spectro-Stratoscope’ balloon-borne solar telescope, an attempt was made with the 35-cm aperture domeless Coudé refractor of the Capri Station of Fraunhofer Institute to obtain spectra of penumbral fine structure.
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References
Beckers, J.M. (1966) in Convegno sulle macchie solari, Florence, p. 186.
Schröter, E.H. (1965) Z. Astrophys., 62, 228, 256.
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© 1968 International Astronomical Union
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Mattig, W., Mehltretter, J.P. (1968). Fine Structure of Brightness, Velocity and Magnetic Field in the Penumbra. In: Kiepenheuer, K.O. (eds) Structure and Development of Solar Active Regions. International Astronomical Union / Union Astronomique Internationale, vol 35. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-6815-1_27
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DOI: https://doi.org/10.1007/978-94-011-6815-1_27
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