SH2-129 (Flying Bat Nebula) and Ou4 (Squid Nebula)

Flying Bat Nebula and Squid Nebula.

Find here a mouseover in order to see the separate color components of the photo. The picture has been selected for AdW at astronomie.de.


Picture Information
Object Sh2-129 region
Place Borgfeld, Bremen, Germany, 17.07./14.08./21./22.08./15./18.10.2017
Scope Skywatcher Esprit 100 ED with small Riccardi reducer at f/4.1
Camera Atik 383L+, Baader Ha 7nm 12×30 min, Astrodon O[III] 3nm 27 x 30 min, Baader RGB each 5×10 min (poor seeing),  Sum: 22h
Mount Avalon Linear
Guiding Lodestar 60/240 Finderscope, PHD-Guiding
Processing PI, PS
Remark SH2-129 is a relatively faint emission nebula in Cepheus, a neighbor of the larger and more often imaged IC 1396.  Sometimes referred to as the „Flying Bat“ nebula, this region is characterized by Ha emission as well as a small, mixed emission and reflection nebula. What is most remarkable about this region is a recent discovery made in 2011 by Nicolas Outters, called the „Squid Nebula“ due to its shape, but more officially called Ou4.  This region is characterized by a very faint O[III] emission that has a bipolar shape reminscent of a planetary nebula.

It took the whole summer to take the picture. One reason was my business, which not allows me to be at home all nights. Of course, during best nights I had to stay somehere else… The second reason was the exeptional good summer this year… Also an issue, the picture processing drove me also almost crazy. The third processing run is now the one shown here.

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