Coronal images from the 1984 solar eclipse

Details Coronal images from the 1984 solar eclipse Coronal images from the 1984 solar eclipse

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993soph..146..405p&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 146, no. 2, p. 405-408.

Physics

2

Black And White Photography, Color Photography, Digital Techniques, Solar Corona, Solar Eclipses, Digital Filters, Image Processing, Papua New Guinea, Solar Cycles, Synoptic Measurement

Scientific paper

We present digitized photographs of the white-light solar corona taken during the total solar eclipse of 22-23 November, 1984, on both calibrated black-and-white film and on color film. Conditions on site in Hula, Papua New Guinea, were exceptionally clear. The color image was used to produce an isophotal map of the inner corona, from which a flattening coefficient of 0.23 was measured. The black-and-white image was enhanced through a digital radial filter. Our images are the best processed images available from the 1984 eclipse and so provide important data for synoptic observations.

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