Structure of the solar corona during the solar eclipse of 1980 February 16

Astronomy and Astrophysics – Astronomy

Scientific paper

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Solar Corona, Solar Eclipses, Coronal Loops, Solar Prominences, Sunspots

Scientific paper

The structure of the solar corona in white light during a solar eclipse is observed. The observations were made in Fawal Gara, India and coincided with the maximum of solar cycle number 21. Broad corona streamers mostly in the radial direction were observed around the entire solar disk up to heights of about 6 solar radius, with the exception of the south polar region (P.A. 165-180 deg) where no streamers were observed during the maximum. This phenomenon appears to be due to the nonuniform development of polar prominence zones in the individual hemispheres. In the inner corona, a large number of thin coronal loops was observed which upset the compactness of e coronal rays at greater heights. In the outer corona, areas of lower intensity about 10,000 km in width were found between 1.5 and 1.75 solar radius. At 9.4 solar radius the head of the coronal transient was observed.

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