Image Description and Details :

Today I want to show you my most elaborate DeepSky object. And that is SH2-129 & Ou4The Bat and Squid Nebula in the constellation of Cepheus.Ou4 is also called "the flying bat and giant squid nebula". This is the penis-like shape with the special blue-green emissions of double-ionized oxygen atoms. The squid nebula was discovered in 2011 by the French astrophotographer Nicolas Outters and is very faint.Therefore, I took all pictures with a new moon as possible.The entire field is approx. 3 degrees or 6 full moons wide! As a result, I had to make a 4-part mosaic with 6 "f / 4 Newton at 600 mm focal length. So actually a huge object in the night sky.The image processing was then again a challenge. Above all, a picture that was as natural as possible with the "right" colors was important to me. I also like star colors ---------------------------------------------Recording dates: Location: Upper AustriaRecording date: May to June 2021Distance: 2300 light yearsDiameter: 50 light yearsExposure: 122 x 300 sec. For RGB151 x 900 sec. With dual narrowbandTotal: 48 hours Calibration: Darks / Flats / DarkFlatsMount: Skywatcher EQ6-R PROTelescope: TS 6 ″ Newton Carbon 150/600Corrector: Lacerta GPU coma correctorFilters: Astronomik L2 UV-IR Block 2 ″ and Optolong Filter L-eXtreme 2 ″Camera: QHY268c @ Gain 0 at -15 ° CGuiding: ZWO OAG with QHY5III462c and PHD2Heaven: Mag. 21.67Software: APP / Photoshop CC / NHF-sharpen

Copyright: Daniel Nimmervoll