The second contact
After the eclipse I was nearly sure that the 200 mm lens images were unusable for further image
processing. The reason was that the wide field of view made finding images without any cloud nearly
impossible. Finally I selected carefully only 9 images of totally 78 taken by means of 200 mm lens
during totality. Together with 38 images taken with 500 mm lens these images enabled me to create a
wide angle image which is over my expectations. The limiting magnitude is about 9 and at least 209 stars
can be found on this
full field of view image version.
Click on the image or on the following reference to display the
higher resolution image version (1.9 MB, PNG format).
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| Image | Tse2009e_200mm_2nd.png |
| Date | 22. 07. 2009 |
| Time | 2nd contact 03:28:39 UT (total eclipse duration 5 m 41 s) |
| Place | Enewetak Atoll, Marshall Islands |
| Coordinate | 11° 21.546' N, 162° 20.827' E, 3 m altitude |
| Conditions | Partially clear, partially small cumulus cloud,
altitude of the Sun above the horizon 56-57° |
| Optics | Canon 200mm 1:2.8 L II
Maksutov-Cassegrain 3M-6A, 6.3/500 mm |
| Camera | Canon EOS 5D Hutech Ia modification (Canon 200mm lens)
Canon EOS 5D (Maksutov-Cassegrain) |
| Exposure | 1/500 s - 1 s (Canon 200mm lens)
1/250 s - 8 s (Maksutov-Cassegrain) |
| Processing | Composition of 9 images (Canon 200mm lens) and 38 (Maksutov-Cassegrain) eclipse images. Eclipse images calibrated by means 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 5.0, Corona 4.1, Sofo ACC 6.1 |
| Copyright | © 2009 Miloslav Druckmüller, Peter Aniol |
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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: 6.10.2009
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