Celestial hemisphere:  Southern  ·  Constellation: Puppis (Pup)  ·  Contains:  HD60431  ·  HD60671  ·  HD60752  ·  HD60794  ·  HD60795  ·  HD60839  ·  HD61194
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The  Doomsday Machine: CG4, Brian Boyle
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The Doomsday Machine: CG4

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The  Doomsday Machine: CG4, Brian Boyle
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The Doomsday Machine: CG4

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Description

In my view, Puppis is a somewhat underrated part of the sky.  Overshadowed by its more showy neighbours and former members of the Argo Navis constellation, there are a few treasures here.  One of those treasures is Cometary Globule 4 and the small galaxy it is menacingly juxtaposed against.    

Looking alarmingly like the Doomsday Machine from the eponymous Star Trek episode (which I remembered seeing the first time around), it has been on my target list since I started in this hobby

Frustrated by bad weather in 2020 and 2021, I finally managed to get some L-frames a couple of nights ago on the first good night in over a month.  Unfortunately the next night was badly affected by cloud, and I only managed to salvage 50% usable subframes from the RGB observations.   With the cloud closing in until full moon, I decided to process what I had, inspired by  @Michael Feigenbaum very impressive images achieved using a 6:1 L:Broadband ratio. 

I have included one relatively close crop (but also shows both the data and processing inadequacies), and one wider field.  Normally I go for the wide field, but I think in this case the close crop frames the target much better. 

Grateful for your feedback on this attempt.   

L: 71 x 180s
R: 18 x 300s
G: 7 x 300s
B: 7 x 300s

"Gentlemen, I suggest you beam me aboard."

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Revisions

  • The  Doomsday Machine: CG4, Brian Boyle
    Original
  • The  Doomsday Machine: CG4, Brian Boyle
    D
  • The  Doomsday Machine: CG4, Brian Boyle
    E
  • Final
    The  Doomsday Machine: CG4, Brian Boyle
    F

E

Description: A re-processing with better stretch and improved mid-tones.

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The  Doomsday Machine: CG4, Brian Boyle