Fe XIV emission image

This image shows Fe XIV emission.The resulting image was made from two sets of images taken with two Canon EOS 5D cameras. The first one (on-line camera) was equipped with a narrow-band filter with center wavelength 530.2 nm and bandwidth 0.15 nm. The second camera (off-line camera) was equipped with a narrow-band filter of the same bandwidth and center wavelength 529.1 nm. Both used filters were stabilized at temperature of 45.0°C. After precise calibration, the images taken with the off-line camera were subtracted from images taken with the on-line camera in order to remove the continuum radiation. Therefore the resulting image contains Fe XIV radiation only. The image is presented in the color which corresponds for human vision with 530 nm. See the following pages for more information about our green line experiment.

Date22. 07. 2009
Time2nd contact 03:28:39 UT, 3rd contact 03:34:20 UT
Total eclipse duration 5 m 41 s
PlaceEnewetak Atoll, Marshall Islands
Coordinate11° 21.546' N, 162° 20.827' E, 3 m altitude
ConditionsPartially clear, partially small cumulus cloud,
altitude of the Sun above the horizon 56-57°
Opticson-line: Beroflex 8/500mm, 530.2nm filter, bandwidth 0.15nm (Andover Corp. USA)
off-line: Exakta 8/500mm, 529.1nm filter, bandwidth 0.15nm (Andover Corp. USA)
Cameratwo Canon EOS 5D cameras
Exposure2 s (ISO 100) - 30 s (ISO 400)
ProcessingComposition of 16 on-line and 16 off-line 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. Final processing was done using ACC 6.1 software.
Image processing by Miloslav Druckmüller
SoftwareAstro D3F 2.0, PhaseCorr 6.0, MPA 1.0, LDIC 5.0, Sofo ACC 6.1
OrientationImage must be rotated 8.6° clockwise to achieve standard orientation i. e. North up.
Copyright© 2009 Miloslav Druckmüller, Peter Aniol, Vojtech Rušin, Ľubomír Klocok, Karel Martišek, Martin Dietzel

Miloslav Druckmüller
Institute of Mathematics, Faculty of Mechanical Engineering
Brno University of Technology, Czech Republic
Page last update: 9.10.2009