Solar corona during 19 s long total solar eclipse
This image illustrates that even during 19 seconds long total solar eclipse it is possible to
obtain data which are good enough for creation of very high quality image of solar corona.
This image shows amazing maximum solar corona which is very different from corona during
2008, 2009 and
2010 eclipses. The Sun was only 17.5° above the horizon
and observing conditions were not absolutely perfect which is visible in the image. Very thin high clouds
caused very faint bands. The images used for resulting image creation were taken with 3 different
cameras equipped with Maksutov-Cassegrain optics.
Click on the image or on the following reference to display the
higher resolution image version (2.2 MB, PNG format).
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| Image | Tse_2013_hsd.jpg |
| Date | 3. 11. 2013 |
| Time | 2nd contact 14:22:18 UT, 3rd contact 14:22:37 UT
Total eclipse duration 19 s |
| Place | Pokwero, Uganda |
| Coordinate | N 2° 33' 21.24", E 31° 23' 59.10", Alt. 640 m |
| Conditions | very faint high clouds |
| Optics | (1) Rubinar 10/1000mm, (2,3) 3M-5CA 8/500mm |
| Camera | (1) Canon EOS 6D (ISO 250), (2,3) Canon 350D (ISO 100) |
| Exposure | (1) 1/500 s, (2) 1/30 s, 1/15 s, 1/8 s, (3) 1/4 s, 1/2 s, 1 s |
| Processing | Composition of 22 eclipse images. Eclipse images were calibrated by means of large number of dark frames and flat-fields, aligned by means of phase correlation, composed by means of LDIC 5.0 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 |
| Software | Astro D3F 2.0, PhaseCorr 6.0, MPA 1.0, LDIC 6.0, Corona 4.1, Sofo ACC 6.1 |
| Note | The graph above the table shows the average values of the relative number of sunspots in which the red line indicates the time of 2013 eclipse. The data from the World Data Center for the sunspot index, (Solar Influences Data Analysis Center, the Royal Observatory of Belgium) were used. |
| Orientation | Image must be rotated 17.7° clockwise to achieve standard orientation i. e. solar North up. |
| Copyright | © 2013 Petr Horálek - Úpice observatory, Jan Sládeček, Miloslav Druckmüller |
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Miloslav Druckmüller
Institute of Mathematics, Faculty of Mechanical Engineering
Brno University of Technology, Czech Republic
druckmuller@fme.vutbr.cz
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Page last update: 27.11.2019
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