Solar corona up to 12 solar radii

This image showing the solar corona up the distance of more then 12 solar radii is a composition of totally 98 images. 63 digital images of inner corona were taken with F8 500 mm Maksutov-Cassegrain. The outer corona was recorded on 27 one second long exposures taken on classical 800 ISO negative film with F2.8 200 mm lens. Another 8 images on the classical film with exposure range from 1/125 s to 1/2 s were taken in order to make the alignment with digital images of the inner corona possible. The success of this carefully prepared plan was nearly a miracle. The sky was partially covered with cirrus clouds during the totality (see wide-angle images), fortunately the sufficient large neighborhood of the Sun was clear.
Click on the image or on the following reference to display the higher resolution image version (4.5 MB, PNG format).

Date29. 03. 2006
Time2nd contact 11:02:23 UT, 3rd contact 11:05:29 UT
Total eclipse duration 186 s
PlaceNear Göreme, Cappadocia, Turkey
CoordinateE 34° 52.147', N 38° 39.390', alt. 1330 m
ConditionsGood, thin cirrus clouds out of the solar disk, strong wind, altitude of the Sun above the horizon 50°
OpticsD: Maksutov-Cassegrain MC 3M-5CA, 8/500 mm
A: Pentacon, 4/200mm
CameraD: Canon EOS 1D Mark II digital camera (ISO 100)
A: Minolta X 370 classical film camera
FilmA: Fujichrome Superia X-TRA 800
ExposureD: 1/1000 s - 8 s
A: 1/125 s - 1 s
ProcessingComposition of 98 images (63 D, 35 A). Images were aligned by means of phase correlation, composed using of LDIC 4.0 software, processed using Corona 4.0 in order to visualize coronal structures. Final processing was done using ACC 6.0 software.
Image processing by Miloslav Druckmüller and Hana Druckmüllerová
ScannerA: Nikon Super Coolscan 4000 ED (Multisample 16×)
SoftwarePhaseCorr 4.0, LDIC 4.0, Corona 4.0, Sofo ACC 6.0
NoteD: denotes equipment of Hana Druckmüllerová
A: denotes equipment of Martin Antoš
OrientationImage must be rotated 43.40° anti-clockwise to achieve standard orientation i. e. North up.
Copyright© 2006 Martin Antoš, Hana Druckmüllerová, Miloslav Druckmüller


Miloslav Druckmüller
Institute of Mathematics, Faculty of Mechanical Engineering
Brno University of Technology, Czech Republic
Page last update: 19.3.2007