Celestial hemisphere:  Northern  ·  Constellation: Vulpecula (Vul)  ·  Contains:  HD182619  ·  HD182695  ·  HD182918  ·  HD344317  ·  HD344394  ·  HD344396  ·  HD344399  ·  HD344401  ·  LBN 133  ·  LBN 134  ·  LDN 768  ·  LDN 769  ·  LDN 772  ·  NGC 6793
vdB 126 (LBN 134), LBN 133 and LDN 768, 769 and 772, Björn
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vdB 126 (LBN 134), LBN 133 and LDN 768, 769 and 772

vdB 126 (LBN 134), LBN 133 and LDN 768, 769 and 772, Björn
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vdB 126 (LBN 134), LBN 133 and LDN 768, 769 and 772

Equipment

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Acquisition details

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Description

The central target of this image was reflection nebula vdB 126, located at the image's center. The distance to the reflection nebula from Earth is about 0.3kpc or roughly 1kLy. It's light stems from the star HD182918, which is a B6V class star, embedded in the nebula. The star's B-V color index is 0.16 and therefore slightly bluish. For artistic purposes, the color was saturated to emphasize the bluish tint.

To the west (North is up) of vdB 126 (also listed as LBN 134) is LBN 133. I haven't found literature about it so if I should assess it, I would say the following: it appears to be an emission nebula of ionized hydrogen gas. One can notice it's magenta color which would be explained by the combination of Ha and Hb lines.

Very noticeable are the dark nebulae LDN 768, 769 and 772. Since the image's objects are located in the galactic disk, we can see a myriad of stars surrounding the dark nebulae and the main object of this imaging project.

To the acquisition: my intention was to image a rather rarely imaged bright nebula. Once captured, I wanted to represent the colors close to their real colors but saturated to give an additional contrast dimension to it.
The initial approach was to capture the data following the LRGB process. However, the imaging conditions led to a change of plan. The first night only allowed for 50% (45min) of the desired acquisition time (1.5h) in the red channel. The second night should have captured the other 50% of red and both blue and green, with the remaining time allowing for some luminance subs. Unfortunately, the night turned out to be cloudier than expected and therefore, I changed plans and returned to capture R once G and B were in the box. After analysing the data, it seemed that the RGB data was sufficient to produce a decent image (at least to my modest standards) and I chose to finish processing and skip the collection of luminance subs.

As always, feedback is welcome!

Björn

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