Caldwell 49 - Roset...
 
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2023-09-16: APP 2.0.0-beta23 has been released !

Improved performance again, CMD-A now works in macOS File Chooser, big improvement for bad column cosmetic correction, solved several bugs

We are very close now to  releasing APP 2.0.0 stable with a complete printable manual...

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Caldwell 49 - Rosette Nebula in bi-color

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(@tschuh)
White Dwarf
Joined: 5 years ago
Posts: 13
Topic starter  

I took this in November of last year.  Ha and O-III data from my Bortle 9 back garden north of Dallas, Texas, USA.

5 minutes x 30 each Ha and O-III
  R: Ha
  G: (Ha/O-III)
  B: O-III

QHY 168M w/ Baader 7nm filters
AstroTech AT65EDQ quadruplet f/6.5 - 420mm f/l

 

49105109618 124090a71e o

   
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(@vincent-mod)
Universe Admin
Joined: 6 years ago
Posts: 5701
 

Wow, given you say it's bortle 9, that is a very nice image! Narrowband definitely helps here, but are you sure it's as bad as 9? 🙂


   
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(@tschuh)
White Dwarf
Joined: 5 years ago
Posts: 13
Topic starter  

@vincent-mod

Pretty certain, yes. 🙂  To make matters worse, I have about 1.5m sq.m of illuminated concrete within 3km of my house.  At least according to Google Maps.

image
This post was modified 3 years ago by tschuh

   
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(@vincent-mod)
Universe Admin
Joined: 6 years ago
Posts: 5701
 

Amazing, impressed with the result then even more!


   
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