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NGC 2024 and B33 (Ori)
Click on the image for a larger version
| Date/Site: |
December 28., 2008, AAR-observatory in Presberg |
Exposure/
Filter: |
L: 8 x 10 minutes (-30°C)
red, green and blue: 6 x 10 minutes (-30°C) |
| Camera: |
SBIG ST10XME, motorized Atik-filterwheel with Astronomik-RGB-filters |
Optics/
Instrument: |
4"-TMB-refractor on the Gemini 41 Field mount of the AAR |
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focusing by hand with the aid of MaximDL 4.6 |
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Deblooming, darks, alignment and stacking: MaximDL,
levels and curves: Photoshop CS |
Remarks: good tranparency, sometimes an easterly gale, -5°C, imaged together with Tobbe Konz.
Removal of the blooming-artefacts of Zeta Orionis is a form of higher magic, which is beyond my reach.
Reflections of bright Alnitak on the filter-surfaces and in the refractor-optics added some bias.
Here is an earlier version of the same object:
Flame-nebula near Zeta Orionis with the horsehead-nebula
Click on the image for a larger version
| Datum: |
November 9., 2008 |
| Optik/Camera: |
same setup as above |
Exposure/
Filter: |
L: 13 x 5 minutes
red and green: 3 x 5 minutes (-25°) |
Remarks: occasionally very good tranparency; moon; storm with strong gusts and passing clouds coming in before an approaching cold front.
Because thick clouds rolled in I had to stop before I could make images for the blue channel, so only a b&w-image of the combined L-, R- and G-images is presented.
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© Friedhelm Hübner, last revision: 03.12.2023