Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)
Sharpless 112 (SH2-112) in Cygnus in HOO narrowband, Michele Vonci
Sharpless 112 (SH2-112) in Cygnus in HOO narrowband
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Sharpless 112 (SH2-112) in Cygnus in HOO narrowband

Sharpless 112 (SH2-112) in Cygnus in HOO narrowband, Michele Vonci
Sharpless 112 (SH2-112) in Cygnus in HOO narrowband
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Sharpless 112 (SH2-112) in Cygnus in HOO narrowband

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Description

I thought I wasted almost 2 hours of clear sky and the O(III) data for my Sh2-112 project was unusable: I had lots of symmetric circular gradients in the stacked O(III) image I could not get rid of that were spoiling any attempt to combine together the O(III) and Hydrogen-alpha data sets.
I was so disappointed that I decided not to publish a colour version of this picture. Then, this evening I collected some new flats using the sunset light and they did the trick! No more gradients and the bicolour image turned out quite nicely. Considering the relatively short exposure I'm super happy with the result!

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  • Sharpless 112 (SH2-112) in Cygnus in HOO narrowband, Michele Vonci
    Original
  • Sharpless 112 (SH2-112) in Cygnus in HOO narrowband, Michele Vonci
    B
  • Final
    Sharpless 112 (SH2-112) in Cygnus in HOO narrowband, Michele Vonci
    C

B

Description: A version with less contrast and with more "natural" colours.

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Sharpless 112 (SH2-112) in Cygnus in HOO narrowband, Michele Vonci

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Imagers of Italy
Cloudy Nights