Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  50 zet Ori  ·  Alnitak  ·  B33  ·  Flame Nebula  ·  Horsehead nebula  ·  IC 434  ·  IC 435  ·  LBN 953  ·  LBN 954  ·  NGC 2023  ·  NGC 2024  ·  Orion B  ·  Sh2-277  ·  The star Alnitak (ζOri)
The Horsehead (B33) and The Flame Nebula (NGC 2024) in LHaRGB - A “Failed” Image, Cosgrove's Cosmos (Patrick Cosgrove)
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The Horsehead (B33) and The Flame Nebula (NGC 2024) in LHaRGB - A “Failed” Image

The Horsehead (B33) and The Flame Nebula (NGC 2024) in LHaRGB - A “Failed” Image, Cosgrove's Cosmos (Patrick Cosgrove)
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The Horsehead (B33) and The Flame Nebula (NGC 2024) in LHaRGB - A “Failed” Image

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Description

The Horsehead (B33) and The Flame Nebula (NGC 2024) is the results of wideband and narrowband data collected during the incredible stretch of weather we just had in western NY November 5-8, 2021. I ended up getting in 4 nights of capture on 3 scopes and collected data on 9 Targets!

This is the fifth image I have been able to process from this trove of data. 

This was taken with my Wiliam Optics 132mm FLT APO scope, the IOptron CEM60 mount, and the ZWO ASI1600MM-Pro camera. 

This is the second image from that capture session to have halos and microlens reflection artifacts due to having a bright star in the field.  In the first image, I was able to find a technique to correct that problem and create a nice image.  However, this image had more complex halos and microlens reflection than the first and I was not able to process the image to correct these artifacts in a way that I find acceptable.   

I am thereby classifying this as a "Failed Image".Here is exam

When I first created my website I committed to sharing all of my images - both good and bad.  The journey of astrophotography will include both and there is something to learn from each.  So I share this with that intent in mind. 

Here is an example of the artifacts seen in the original image:
HaRGB-before-L.jpg

See the Full details on the capture and extensive processing notes  with screen grabs for this image which is available on my website at the link below:

https://cosgrovescosmos.com/projects/b33-horsehead-nebula-lhargb

Please check it out and let me know if you have any questions.

Thanks for looking!

Pat

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The Horsehead (B33) and The Flame Nebula (NGC 2024) in LHaRGB - A “Failed” Image, Cosgrove's Cosmos (Patrick Cosgrove)