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I agreeImaging telescope or lens:Home made 400mm F/4 Newtonian
Imaging camera:Quantum Scientific Imaging QSI583wsg
Mount:10 Micron GM2000 QCI
Guiding telescope or lens:Home made 400mm F/4 Newtonian
Guiding camera:Lodestar
Focal reducer:TeleVue Paracorr Type 2
Software:PixInsight, CCD Inspector, CCD Autopilot 5, DC-3 Dreams PinPoint Astrometric Engine, FocusMax, Diffraction Limited MaximDL 5 Pro
Resolution: 3326x2504
Dates:Sept. 23, 2016
Frames: 17x600"
Integration: 2.8 hours
Avg. Moon age: 22.22 days
Avg. Moon phase: 49.20%
Astrometry.net job: 1252676
Locations: Beilen Observatory B85, Beilen, Drenthe, Netherlands
Data source: Backyard
17 x 600s R filtered exposure of the Dwingeloo1 galaxy that was discovered with the venerable Dwingeloo Radio telescope in 1994, just before it was decommissioned. It is located in the "zone of avoidance" where dust from our own galaxy obscures much of the light. Only red and infra-red light and radio waves will penetrate this dust. So it was discovered in radio emissions, but it is detectable in visible light too! For me this one is special, since I work at the Dwingeloo Radio Observatory (ASTRON).
I will try to get some more images when the moon is gone again to make an L-RGB image.
The negative version shows the shape of the faint galaxies a bit better.
The blob in the middle is Dwingeloo1, the blob a bit lower is LEDA166069
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