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Observations of the solar corona in polarized white light during the total solar eclipse of February 16, 1980: Preliminary results

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Abstract

Photographic observations of the corona were made by a Belgian expedition to Kenya during the eclipse of 1980, February 16, using a polaroïd filter oriented in three directions 60 ° apart. The preliminary results of the reduced data are presented here; these results consist in the analysis of the three following parameters: total intensity, degree of polarization, direction of the electric vector. The local variation of these parameters reveals, among other features, a deep coronal hole at the south pole and peculiar streamer (P.A. 280 °) associated to a transient, (the so-called ‘tennis racket’) also observed by other teams, and a density enhancement at P.A. 200 °, possibly associated with a transient observed with the K-coronameter of the High Altitude Observatory 12 hr before the eclipse.

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  1. Observatoire Royal de Belgique, Avenue Circulaire, 3 B-1180, Bruxelles, Belgium

    F. Clette, P. Cugnon & A. Koeckelenbergh

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  1. F. Clette
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  2. P. Cugnon
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  3. A. Koeckelenbergh
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Clette, F., Cugnon, P. & Koeckelenbergh, A. Observations of the solar corona in polarized white light during the total solar eclipse of February 16, 1980: Preliminary results. Sol Phys 98, 163–171 (1985). https://doi.org/10.1007/BF00177206

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  • DOI: https://doi.org/10.1007/BF00177206

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