This is the 740 mm focal length image version of the data I recently shot as initial use of my new double setup, which consists of a TS Photoline 130/910 (@f/5.8) and a TS CF-Apo80 (@f/6.0). The 480 mm version can be found here
https://www.astrobin.com/kdwoux/The supernova remnant SNR G206.9+2.3 in the constellation is a rarely photographed object in the constellation Monoceros. This is actually surprising, since it fits comfortably on an APS-C sensor with moderate telescope focal lengths and also has a passable brightness in the O[III] and H-alpha bands.
SNR G206.9+2.3 shows a beautiful filamentary structure of shells of O[III] and H-alpha. I gave it the name "Phacobs Nebula" because its external shape is very similar to the famous fossil trilobite of the genus of the same name.
The object is quite low in the sky here and lies most of the time in the light dome of the Ruhr industrial zone. The data was preprocessed in Astro Pixel Processor and then further processed in PixInsight and Photoshop.
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