Fe XIV emission - on/off line color image

The red and blue components of this image are identical and they consist of image taken though 529.1 nm filter. This is the image of continuum only. The green component is the image taken through 530.2 nm filter. This image is taken on the wavelength of Fe XIV emission line, however the light contained not only Fe XIV emission but continuum as well. Both the on-line and the off-line image were precisely calibrated and the shift of 1.1 nm between the on-line and the off-line filter is negligible from the point of continuum intensity. Therefore the intensity of continuum in the red, green and blue component of the image is identical and represents neutrally gray component of the color image. The XIV emission is present only in the green component of the color image. The image is presented in logarithm brightness scala and without any structure enhancement.

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)
Processing16 on-line and 16 off-line eclipse images used. 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