Corona in white light and EUV

The part of the solar image which was during the total solar eclipse occulted by the Moon was replaced by SDO AIA data acquired in EUV spectral range. 304 A, 171 A and 211 A images processed by means of PM-NAFE algorithm acquired during the time of total solar eclipse were used. The full resolution version of this image you may download here.
Click on the image or on the following reference to display the higher resolution image version (2.6 MB, PNG format).

Date4. 12. 2021
Time2nd contact 07:45:00 UT, 3rd contact 07:45:38 UT
PlaceUnion Glacier, Antarctica
CoordinateS 79° 44.340',   W 82° 44.195',  Alt. 715 m
ConditionsClear sky, Solar altitude at mid-eclipse 13.9° above horizon
OpticsNikkor 80-400mm 1:4.5-5.6G ED VR (set to FL 400 mm, F5.6)
CameraNikon Z6
Exposure1/400 s - 2 s, ISO 100
ProcessingComposition of 24 eclipse images. 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 6.0 in order to visualize coronal structures. Final processing was done using ACC 6.1 software.
Image processing by Miloslav Druckmüller
Images acquired by Andreas Möller
SoftwareAstro D3F 2.0, PhaseCorr 7.0, LDIC 6.0, Corona 6.0, Sofo ACC 6.1
OrientationImage standard orientation i. e. solar North up
Copyright© 2021 Miloslav Druckmüller, Andreas Möller, SDO AIA 304 A

Miloslav Druckmüller
Institute of Mathematics, Faculty of Mechanical Engineering
Brno University of Technology, Czech Republic
Page last update: 27.1.2022