Fe XIV (530.3 nm) and Fe XI (789.2 nm)
Image | Fe_XI_Fe_XIV_NoCont_Mitchell_ACHF.png |
Date | 21. 08. 2017 |
Time | 2nd contact 17:21:11 UT, 3rd contact 17:23:14 UT |
Place | near Mitchell, Oregon, USA |
Coordinate | N 44° 31.539', W 119° 54.459', Alt. 1100 m |
Conditions | Clear sky but some smoke from forest fires, solar altitude 43° above horizon |
Optics | 4× Achromat 4/300 mm equipped with following narrow band filters: On-band filter: Andover, center wavelength: 530.3 nm, bandwidth 0.5 nm Off-band filter: Andover, center wavelength: 527.3 nm, bandwidth 0.5 nm On-band filter: Andover, center wavelength: 789.2 nm, bandwidth 0.5 nm Off-band filter: Andover, center wavelength: 786.1 nm, bandwidth 0.5 nm |
Camera | 2×Atik 314L (Fe XIV) and 2×Atik 414EX (Fe XI) |
Exposure | 0.05 - 6.4 s |
Processing | Composition of 126 eclipse images (Fe XIV: 32 On-band and 32 Off-band, Fe XI: 31 On-band and 31 Off-band,) taken with 4 cameras. 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, continuum was removed from emission by subtracting the Off-band images, than resulting image was processed using Corona 5.0 software in order to visualize coronal structures. Final processing was done using ACC 6.1 software. Image processing by Miloslav Druckmüller |
Software | Astro D3F 2.0, PhaseCorr 7.0, LDIC 6.0, Corona 5.0, Sofo ACC 6.1 |
Copyright | © 2017 Miloslav Druckmüller, Shadia Habbal, Pavel Štarha, Judd Johnson, Jana Hoderová |
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Miloslav Druckmüller
Institute of Mathematics, Faculty of Mechanical Engineering
Brno University of Technology, Czech Republic
druckmuller@fme.vutbr.cz
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Page last update: 26.11.2019
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