Solar corona, Earth-lit Moon and stars

About 440 images were used for the creation of this image. 62 images were taken during the eclipse, all others were calibration images (dark frames, flat-field images) taken immediately after the eclipse. Canon EOS 1D Mark II digital camera was equipped with my old well-tried Russian Maksutov-Cassegrain MC 3M-5CA 8/500 mm. The lens is quite small and the camera quite heavy, which makes possible to screw the system to the mount with the camera body. This combination is then highly resistant to vibrations. The focal length of 500 mm is equivalent to 650 mm for a full-frame camera. The position of the Moon represents the situation 120 seconds after the second contact i. e. 10:46:31 UT (17:46:31 local time). The display of the solar corona, lunar surface and stars in the resulting image are highly beyond the ability of human vision during the eclipse. The weakest stars visible in the image are of about magnitude 11.
Click on the image or on the following reference to display the higher resolution image version (2.6 MB, PNG format).

Date01. 08. 2008
Time2nd contact 10:44:31 UT, 3rd contact 10:46:47 UT
Total eclipse duration 2 m 16 s
PlaceRussia, Novosibirsk, Klyuchi ionospheric observatory of Russian Academy of Sciences
CoordinateE 83° 14.204', N 054° 50.397', alt. 160 m
ConditionsExcellent - clear sky, altitude of the Sun above the horizon 30°
OpticsMaksutov-Cassegrain MC 3M-5CA, 8/500 mm
CameraCanon EOS 1D Mark II digital camera (ISO 100)
Exposure1/125 s - 8 s
ProcessingComposition of 56 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 Hana Druckmüllerová and Miloslav Druckmüller
SoftwareAstro D3F 2.0, PhaseCorr 6.0, LDIC 5.0, Corona 4.1, Sofo ACC 6.1
OrientationImage must be rotated 16.7° anti-clockwise to achieve standard orientation i. e. North up.
Copyright© 2008 Hana Druckmüllerová, Miloslav Druckmüller

Miloslav Druckmüller
Institute of Mathematics, Faculty of Mechanical Engineering
Brno University of Technology, Czech Republic
Page last update: 19.3.2009