The Cirrus Nebula in the constellation Swan (Cygnus)

The Cirrus Nebula is built from the ejected gas masses of a supernova explosion about 8000 years ago. The gases move away from the explosion site at a high velocity and collide with the interstellar medium. Fine filaments form at the collision fronts, which are ionized by the collision energy and emit light. A compact remnant of the exploded star (neutron star, pulsar or black hole) could not be found so far.

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Date:2019 – 2022
Optics: Pentax SDP 105 with 0.72x reducer
Aperture: 105 mm
Focal Length: 510 mm
Camera: Canon EOS 700Dac
Exposure: 6-frame mosaic
together 140 x 300 s
Location: Chamaeleon Observatory, Onjala Lodge, Namibia
Processing: DeepSkyStacker, Nebulosity, Photoshop
Diameter:130 light years
Distance:2,400 light years
annotated image

image field in the sky