File:M13-2012-07-25.jpg
M13-2012-07-25.jpg (616 × 403 pixels, file size: 131 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionM13-2012-07-25.jpg |
English: This is an image of M13 with minimalistic astrophotography equipment. It was taken with an unmodified Canon EOS 20D in ISO 400 setting. The Objektive was a Carl Zeiss Jena Sonnar 1:2,8/180. M13 was tracked with a self-made "barndoor-type" mount. 8 images á 23 s were stacked with Fitswork; the first two images were taken at aperture 2.8, the next six at aperture 4. No correction using darks or flats were performed.
Fitswork documentation: SIMPLE = T BITPIX = -32 NAXIS = 3 NAXIS1 = 616 NAXIS2 = 403 NAXIS3 = 3 CTYPE3 = 'RGB ' DATE-OBS= '2012-07-25' TIME-OBS= '00:43:33' INSTRUME= 'Canon Canon EOS 20D' EXPTIME =2.0000000000000E+01 SHUTTER = INF COMMENT ISO 400 COMMENT Aperture 2.1474836480000E+09 HISTORY 8 Bilder Mittelmed HISTORY Ausschnitt [X1: 0, X2: 3501, Y1: 0, Y2: 2313] HISTORY Ausschnitt [X1: 349, X2: 3386, Y1: 38, Y2: 2143] COMMENT FWHistPar Min 0 Max 138 Gam 1.00 Typ 0 COMMENT FWHP3 35JBE88F3594309F2B6101C000023D15D7F375CADA26961CF06FD44FFFF HISTORY Bild nach Histogramm skaliert HISTORY Umgebung (15x15) als Schwarzwert R: 26887.000 G: 23414.000 B: 18393.000 HISTORY Umgebung (15x15) als Schwarzwert R: 159.460 G: 214.130 B: 43.983 subtra HISTORY Pixel als Weisswert nehmen R: 1.084 G: 0.985 B: 0.884 multipliziert HISTORY Bild nach Histogramm skaliert HISTORY Hintergrund ebnen Nebel HISTORY Hintergrund ebnen variabel, Ebnen Radius: 50 HISTORY Rauschfilter, Schwelle 15,2, Radius 3,05, Gauss -> Cauchy 100 HISTORY Ausschnitt [X1: 1820, X2: 2435, Y1: 1397, Y2: 1799] HISTORY Umgebung (15x15) als Schwarzwert R: 8103,800 G: 8536,900 B: 8556,900 su END |
Date | |
Source | Own work |
Author | Trinitrix |
Licensing
[edit]- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 23:16, 1 August 2012 | 616 × 403 (131 KB) | Trinitrix (talk | contribs) |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.