Image | Ecl1999f_chrom_15.png |
Date | 11. 08. 1999 |
Time | 10:23:42 UT (corona images 10:23:04 - 10:23:36 UT) |
Place | France, between Amiens and Beauvais, about 100 km northern from Paris. |
Coordinate | N 49° 38', E 2° 09' |
Conditions | Thin high clouds |
Optics | Refractor Zeiss AS100/1000 mm with teleconverter 1.5× |
Film | Kodak Elite chrome 200 |
Exposure | 1/8 s - 1/250 s and 1/500 s |
Processing | Composition of seven images processed by means of adaptive kernel convolution Image processing Miloslav Druckmüller |
Scanner | Nikon LS-2000 |
Software | Sofo ACC 5.0 Scientific Image Analyzer with Match II Module (final processing) Corona 2.0 Analyzer (coronal structure enhancement) PhaseCorr 2.0 Analyzer (rotation estimation for registration of images) |
Orientation | The image must be rotated 20.51° clockwise to achieve the standard orientation (N top, E left) in heliocentric coordinate system |
Copyright | © 1999 Libor Šmíd, © 2004 Miloslav Druckmüller |