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C100 / Running Chicken Nebula at 200mm

dslr dso imaging astrophotography
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#1 BQ Octantis

BQ Octantis

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Posted 19 January 2019 - 04:37 AM

Got some detail out of my Running Chicken capture from back in April. It was tough to just get the histogram in the ball park, so I pasted it into an image with the unprocessed Carina Nebula and used that to get close.
 
C100 / Running Chicken Nebula

Running Chicken Nebula, 2018-04-14, 49˚ elevation
Canon 200mm f/2.8L II, Canon T3i (unmodified)
3×180 sec@f/3.5 ISO 400, no darks or flats
Skywatcher SkyView Pro EQ Mount (unguided)
Aligned & stacked in Lynkeos 2.10
Processed in Photoshop CS5 w/Annie's Astro Actions v7.0
Full sensor view, scaled to 1600×1067
Tropic of Capricorn, NT, Australia

 

Cheers,

BQ


Edited by BQ Octantis, 19 January 2019 - 08:37 AM.

  • Starman27, psandelle and md11spotter98 like this

#2 BQ Octantis

BQ Octantis

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Posted 22 January 2019 - 06:15 AM

I'm not gonna lie. That first crack was pretty hideous. But my biggest challenge was CA interfering with good color balance—plus, there were so many stars in the field it was tough to remove the magenta halos at the end without impacting the nebula. But Annie's Astro Actions once again came to the rescue: I did a "Reduce star size - full image" on both the blue and the red channels before doing any processing. The result was much more visually pleasing:

 

C100 / Running Chicken Nebula

 

I'll have to try this on all my red-heavy images…

 

Cheers,

BQ




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