Intensities, Polarization and Electron Density of the Solar Corona from Photographs Taken at the Total Solar Eclipse of 1952 February 25
Open Access
- 1 June 1958
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 118 (3) , 201-223
- https://doi.org/10.1093/mnras/118.3.201
Abstract
The corona was photographed at the total solar eclipse of 1952 February 25 with a quadruple camera of focal length 200 cm. Six plates were obtained, each with four corona images, exposed simultaneously, three through polaroids with planes of polarization 60° apart, and one without polaroid. Each plate carried relative and absolute calibrations. An extensive photometry of these plates has provided intensities, amount and direction of polarization, a separation of K and F coronas, and electron densities. The results are summarized in graphs. Comparison is made with van de Hulst's model and with other observations made at the same eclipse.Keywords
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