Abstract
The new Lyot-coronagraph with 53 cm objective is described. The coronagraph has a grating spectrograph. The solar disk image on the slit of the spectrograph is 12.6 cm. The dispersion is 1 Å/mm in the second order. The coronagraph is situated at the Kislovodsk Station of Pulkovo Observatory, 2050 m above sea level.
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References
Nikolsky, G. M. and Sazanov, A. A.: 1966, Astron. Zurn. 43, N4, 868.
Nikolsky, G. M., Proshin, V. P., and Sazanov, A. A.: 1962, Geomagnetism and Aeronomy 2, 532.
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Gnevyshev, M.N., Nikolsky, G.M. & Sazanov, A.A. The Lyot-coronagraph with 53 cm objective. Sol Phys 2, 223–226 (1967). https://doi.org/10.1007/BF00155923
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DOI: https://doi.org/10.1007/BF00155923