Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  Sh2-129
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Sh2-129: RGB + HOO, Uwe Deutermann
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Sh2-129: RGB + HOO

Getting plate-solving status, please wait...
Sh2-129: RGB + HOO, Uwe Deutermann
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Sh2-129: RGB + HOO

Equipment

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Acquisition details

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Description

I saw several images of Sh2-129 here on Astrobin and they inspired me to try this very faint nebula (I want all the Sharpless images at one point of time 😊). I chose moonless nights to take OIII images, they are most susceptible to moonlight. 5 minute exposures with the RASA seemed to be enough, well ... they might not be or the conditions in Florida in the summer are just not good enough. I will definitely try for more OIII data, going up to 10 minutes. The RGB data were obtained with the Williams Z61 and the ASI071MC, guiding was provided by the Orion Mini-Scope. To extract the OIII data a bit more it took me hours to get an almost satisfying image together. Last night I took more OIII data with higher gain that was not yet integrated in this image.

Comments

Revisions

  • Sh2-129: RGB + HOO, Uwe Deutermann
    Original
  • Sh2-129: RGB + HOO, Uwe Deutermann
    C
  • Sh2-129: RGB + HOO, Uwe Deutermann
    D
  • Sh2-129: RGB + HOO, Uwe Deutermann
    E
  • Final
    Sh2-129: RGB + HOO, Uwe Deutermann
    F

C

Description: More work on the "Squid".

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D

Description: Added last nights OIII data with gain 300 to the image which made it a bit easier to show the "Squid". Tonight I will try to add 10 minute exposures for Hα, this channel is a bit weak.

Uploaded: ...

E

Description: Added 10 minute exposures of Hα to Version C to bring out the Hα region much better.

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F

Description: I did not like the star colors in the previous version, and they seemed all to be too small. I know that a lot of people like the stars to be at a minimum, for me somehow this belongs to the image, even if it does not look as great (well, for me it does 😊)!

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Sky plot

Sky plot

Histogram

Sh2-129: RGB + HOO, Uwe Deutermann