A surprisingly dynamic region in Cepheus, the Cave nebula and surroundings. This image was taken during 4 nights with the little 76mm refractor at F4,5, with the ASI2600MC camera and an IR/UV cutoff filter. Total imaging time almost 18 hours, in subs of two minutes.
This is an object that typically gets pictured with narrowband filters using a CCD. It ‘s not very often imaged with DSLR.
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A fantastic object and one of my favorites: this is the large hydrogen bubble in Cepheus. I imaged it from several locations and with varying focal lenghts: 135mm, 180mm, 420mm, and now with the new Esprit 120mm F/7 at a focal length of 840mm.
The image was taken from my backyard in Hoegaarden, Belgium, under an average sky (SQM readings 20,40-20,70), during the night of August 15-16 2018. Camera was the Nikon D750, only a lightpollution filter was used (no narrowband filters).