Orion Widefield - Test (Pat Darmody)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: Extremely wide field

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Orion Widefield - Test

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Orion Widefield - Test

I am calling this a "test" because clouds rolled in quickly and I was only able to get 3 subs. Even the 3 that I got contained a fair amount of cloudiness - resulting in some of the halos.

The in-camera CWB for this image was not shot with a grey card. So, also as a test, I set the CWB for this stack using the Red Balance and Blue Balance factors from a different image - one that was actually shot with my 18% grey card, during a recent sunny day. That seemed to work pretty well.

I have one additional image from the 19th that I am still processing. Hope to have that one done soon.

Thanks for looking!

Version B:

I forgot to mention my theory behind the large red section of halo on the left hand side of the image (removed in version B). I believe that was a section of the lunar halo generated by the nearby first quarter moon and the rapidly increasing cloud cover. I used MultiscaleMedianTransform in PI to remove the R (residual) wavelet layer to get rid of that halo and some of the halos around the stars. Unfortunately, that also removed the valid nebulosity around the Rosette Nebula and the Flame/Horsehead Nebulae.

Original
Final
B

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Basic success
Started	...
Astrometry.net job	896758
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Orion Widefield - Test

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