Image

Outer corona

Even if the total solar eclipse of 1995 October 24 was very short on the observing place, only 50 seconds, it was long enough to take sequence of eight images covering the solar corona from the very Moon's edge up to seven solar radii. The new composing method enables to create exact image including the shape of the Moon. The black object in the image center is not a black circle covering the part of image blurred by Moons's motion but sharp image of the Moon taken with 1/15s exposure. This single image was used for reconstruction of the nearest neighborhood of the Moon. The more distant parts of solar corona were reconstructed using all eight images.

ImageSe1995i_outcor2.png
Date24. 10. 1995
TimeSecond contact: 03:02:43 UT, third contact 03:03:33 UT
Total eclipse duration 50s
PlaceIndia (Rajastan), Nim Ka Thana
CoordinateN 27° 44', E 75° 48'
ConditionsVery good
Optics8/500mm lens
Resolution14.06 arc sec / pixel (image on this Web page)
FilmKodak Ektachrome 100 Plus (5005 EPP), 24×36mm
Exposure1/30, 1/15, 1/8, 1/4, 1/2, 1, 2, 4 s
ProcessingComposition of 8 images. Images were aligned by means of phase correlation technique and then processed using Corona 3.0 software by means of adaptive kernel convolution. Final processing done in ACC 6.0.
Image processing by Miloslav Druckmüller
ScannerNikon Super Coolscan 4000 ED (16x multisample, 4000 dpi)
SoftwarePhaseCorr 3.0, Corona 3.0, Sofo ACC 6.0
OrientationThe image must be rotated 32° clockwise to achieve the standard orientation i.e. North top, East left
Copyright© 1995 Vojtech Rušin © 2004 Miloslav Druckmüller

 


Miloslav Druckmüller
Institute of Mathematics, Faculty of Mechanical Engineering
Brno University of Technology, Czech Republic
druckmuller@fme.vutbr.cz
Page last update: 19.3.2007