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NGC6905 Blue Flash Nebula
Planetary Nebula distance: 4,200 ly apparent size: 44"x38" image size 5'x5' ST-8XME camera 12.5" Planewave scope @ 2500mm (f/8) AP900 mount 5.5 hour total exposure LRGB 100:80:80:70 subs 10:10:10:10 binned 1:2:2:2 (0.73" per pixel unbinned) Guiding with ST-8XME internal guide chip |
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