Changes in the solar corona during 2 minutes
This extremely enhanced animation is made of a sequence of 160 eclipse images acquired with two
identical 800 mm lenses and two Nikon D810 cameras. This sequence was divided into 10 time intervals,
each 12 s long. Each of these 10 intervals was processed separately.
Click on the image or on the following reference to display the
higher resolution image version (7.5 MB, GIF format).
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| Image | Tse_2017_mi800-anm.gif |
| Date | 21. 08. 2017 |
| Time | 2nd contact 17:21:11 UT, 3rd contact 17:23:14 UT |
| Place | near Mitchell, Oregon, USA |
| Coordinate | N 44° 31.539', W 119° 54.459', Alt. 1100 m |
| Conditions | Clear sky but some smoke from forest fires, solar altitude 43° above horizon |
| Optics | 2× TS Photo Line Apochromatic Triplet D=115 mm, f = 800 mm with 2.5 inch flattener |
| Camera | 2×Nikon D810 |
| Exposure | 1/1000 s - 1/4 s (camera 1), 1/4 s - 4 s (camera 2) |
| Processing | Composition of 10×16 eclipse images taken with two cameras. Eclipse images were calibrated by means of dark frames and flat-fields, aligned by means of phase correlation, composed by means of LDIC 6.0 software, processed using Corona 5.0 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 7.0, LDIC 6.0, Corona 5.0, Sofo ACC 6.1 |
| Orientation | Image must be rotated 18.02° anti-clockwise to achieve standard orientation i.e. solar North up. |
| Copyright | © 2017 Miloslav Druckmüller, Peter Aniol, Shadia Habbal |
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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: 26.11.2019
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