Solar corona

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Date11. 07. 1991
Time2nd contact 18:47:52 UT, 3rd contact 18:54:23 UT
Total eclipse duration: 6 min 30 sec
PlaceLa Paz (university), Baja California, Mexico
Coordinate110.31° W, 24.14°N
ConditionsExcellent, clear sky, altitude of the Sun above the horizon: 82°
Optics80mm Zeiss AS refractor with 2× converter, total FL=2400mm
FilmKodak Vericolor III Professional Type S, 6×6 cm film, (Kodak VPS 6006)
ProcessingComposition of 8 images. Images were aligned by means of phase correlation, composed by means of FilmCMP 2.0 software, processed using Corona 4.1 in order to visualize coronal structures. Final processing was done using ACC 6.1 software.
Image processing by Miloslav Druckmüller
ScannerEpson Perfection V750 PRO
SoftwarePhaseCorr 6.0, FilmCMP 2.0, Corona 4.1, Sofo ACC 6.1
OrientationImage must be rotated 102.6° anti-clockwise to achieve standard orientation i. e. solar North up.
Copyright©1991 Peter Aniol, ©2010 Miloslav Druckmüller

Miloslav Druckmüller
Institute of Mathematics, Faculty of Mechanical Engineering
Brno University of Technology, Czech Republic
Page last update: 11.4.2010