Celestial hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  15 S Mon  ·  Christmas Tree Cluster  ·  LBN 911  ·  LBN 912  ·  LBN 922  ·  LDN 1613  ·  NGC 2264  ·  Sh2-273  ·  The star 15 Mon
Sharpless2-273 A christmas tree, a cone and a fox fur, Roy Hagen
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Sharpless2-273 A christmas tree, a cone and a fox fur

Revision title: Reprocessed and a different approach for the sharpening process

Sharpless2-273 A christmas tree, a cone and a fox fur, Roy Hagen
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Sharpless2-273 A christmas tree, a cone and a fox fur

Revision title: Reprocessed and a different approach for the sharpening process

Equipment

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Acquisition details

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Description

This is for sure, the season of «returning to the crime scene» as I shot this target almost three years
ago ,with less skills, knowledge and another camera.
I was going to reprocess the image some time ago, but realized that I actually, in some brainless moment, managed to delete all the image data.
When I took the latest subs, I was running two rigs at the same time and the big rig had to do two jobs each night.
While I imaged the this target, moon came closer and closer to the Unicorn,  and at one night, March 1,  it came as close as 17° to the Cone nebula so I had to protect the telescope against the direct moonlight with a big shade.
Not the full cheese, only half but, close enough.
While Monoceros, the Unicorn is leaving us to the west for this nebula season we have limited imaging time to do some deep sky imaging in this region, a couple of the nights, when this target moved to far west in the evening, I pointed the scope in the opposite direction and imaged  the previous image of the Leo triplet while I was sleeping.
In the end, I got 14hr 6min on this target and 21hr 36 min at the Leo triplet.
This is the way😉

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Revisions

  • Sharpless2-273 A christmas tree, a cone and a fox fur, Roy Hagen
    Original
  • Final
    Sharpless2-273 A christmas tree, a cone and a fox fur, Roy Hagen
    G

G

Title: Reprocessed and a different approach for the sharpening process

Description: I first did the channel extraction of the starless image.
Then I did the noise-reduction and sharpening of the color channels separately, with individual settings.
The tools I used for this process: the NoiseXterminator, The Local histogram equalization tool, and the Dark structure enhance script

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Sky plot

Sky plot

Histogram

Sharpless2-273 A christmas tree, a cone and a fox fur, Roy Hagen