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VDB133 - Nebula (Gallery).jpg

      ​                                                          VDB 133 & SH2-106 Nebula

     Vast area, full of HII emission (red colors), lies in vicinity to central cross area of Cygnus (Swan) constellation. Somewhere in between the bright star Sadr and very popular Veil Nebula. VDB133 is a reflection nebula visible at the bottom of the image. Oppositely to most reflection nebula we know, VDB133 glows in white/yellowish colors. And that is due to a double star Cygni 44 at the center of the nebula, being much whiter in color than most of the other stars that illuminating reflection nebula. Cygni 44 consists of two stars with brightness magnitudes of 6.2 and 10.1, while the main star is a yellow supergiant. It is also possible, that relatively to us, Cygni 44 double, lies in front of the dust clouds, thus VDB133 show colors almost the same as the colors of a main star, instead of bluish, when starlight gets more scattered while passing through complex of dust and gas.

VDB133 - Nebula (SH2-106-Zoom).jpg

     On the left side of the image, the bright reddish patch in a shape of "hourglass", in my opinion, much more intriguing object. That is a SH2-106 Bipolar nebula. It's a star forming region, with a massive star in the middle, ejecting matter out of its poles. Super-hot gas stretching and expanding outwards, creating conical shapes on both sizes. Detailed Hubble studies shows that area hosts of more than 600 "brown dwarfs", the unborn stars with very low mass that cannot sustain nuclear fusion and produce light on their own. Even with a small resolution of my system, it's still possible to note distinct shapes of the Nebula. Definitely an object to return to,  with much longer focal length to resolve even more details.

     Another bright star to the right (Cyg-42) with surrounding bluish reflection nebula, unfortunately seems like uncatalogued object. Could not find any useful information.


Technical Info:

Optics :          Takahashi FSQ106-EDX4 @ F3.6 @ 380 mm (645x0.72)

Camera :        QSI 660 WSG-8 

Filters :          Astrodon Gen 2 E-Series - HaLRGB Filter Set - 1.25"

Mount :          NEQ-6 Pro (Self Hypertuned/Belt Mod)​

Guiding:         QSI OAG + SX Lodestar X2  

Acquisition :    Voyager 2.3.3.  

Exposure :       L     (1x1) -   51 x 120     1 Hours 42 Minutes

                      R     (1x1) -   20 x 180     1 Hour 

                      G     (1x1) -   20 x 180     1 Hour

                      B     (1x1) -   19 x 180     57 Minutes


                      Total Exposure: 4 Hours 39 Minutes

​Processing :    PixInsight 01.8.8-8

Date:             (09.07.2021)

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