SH2-155
Hydrogen Alpha and color image of the Cave Nebula in Cepheus.

Telescope/camera: Takahashi TOA130F at f 5.7 with a STL 6303E, Mini Borg 50 and RGH as guider.
Mount: AP1200 GTO

Exposure: 12 Hours with Badder 7 nm H alpha filter with 30 mins subexposure. RGB 2 hours each channel with SBIG/Baader RGB filters.

Software: CCD Autopilot 4.0, MaximDL 5.07, Sky 6 Pro, FocusMax, CCD Stack and Photoshop CS2.

Taken on August 31 and September 1, 12 and 13, 2009 in Jackson, Ohio