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ASA DDM 60 pro
L 91x10min / RGB 37x10min per filter
33 h 40 min
data acquired remotely using CCD Commander
vdB 9 in Cassiopeia
Reflection nebula
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Cassiopeia
several nights August - December 2017
“Mizar” Takahashi Epsilon 130ED, f/D = 3.3 G2-8300 Moravian, Baader LRGB filter
1 400 ly for the illuminating star SU Cassiopeiae