Thread: Zeta-Orionis
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Old 10-02-2007, 01:27 PM
74tuc
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Join Date: Sep 2006
Location: Sandy Creek(Sth.Aust.)
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Zeta-Orionis

Hi ,

Here is a pic taken while testing the autoguider after mount polar alignment.

The pic is the result of exposure blending 11 images with exposures of 1sec. to 1024 sec. (total time = 2047 sec.) In a sequence of 1,2,4,8 .... sec. The sequence gives a 14 Fstop range. ISO = 800. It should be possible to lower the ISO setting to get a better SNR. These images were combined to make a single HDR image format (eg. Radiance RGBE) then tone compressed to make the colours fit the monitor.

Camera is a standard EOS350D

Dark frame processing was done in the camera and there is no stacking.

Notice that Zet-Ori is nicely resolved and the companion is clearly visible.
Some structure in the Horsehead is being revealed
The Flame is showing up quite well.


Jerry


addition:

Note the Bok Globules are visible in the reflection nehula below zet-ori - see larger pic.
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Last edited by 74tuc; 10-02-2007 at 06:06 PM. Reason: Fixing typos and a minor addition further addition
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