The Bubble Nebula in Cassiopeia, (NGC 7635)

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1,315 minutes (1X1) Luminance and Ha, 205 minutes (1X1) Red, 180 minutes (1X2) Green, 230 minutes (1X2) Blue
Takahashi Mewlon 300, f/11.9
SBIG ST-10XE, CFW8a and A0-7