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Ngc 6543 Cat's eye nebula

GSO 10" + rf AP ccd T67 for alo + barlow lens Clavè 2x for eye
SBIG ST10 XME in self guiding and with LODESTAR autoguide
L=LRGBHOIII + blending H+blending OIII
R=R+blending H
G=G+blending OIII
B=B+blending OIII
L=0,5h : R=1,5h : G=1h : B=1h : H=5,5h : OIII=4h
link al nucleo: Ngc 6543 Cat's eye Nucleo