Sh2-155
The Cave Nebula. Complex Nebula, Cepheus
Click image for larger view

AstroPhysics 175EDF f8
AP 3600GTO "El Capitan"
SBIG STT-8300
SBIG FW8G
(Guided Filter Wheel)
November 2015. Cave Creek Canyon Observatory, Arizona Sky Village
Equipment:

Telescope:
Mount:
Camera:
Guider:
Filters:

- H-Alpha 5nm (Astrodon)     24x20 mins   = 480 mins
- S-II 5nm
(Astrodon)              24x20 mins   = 480 mins
- O-III 5nm
(Astrodon)             24x20 mins   = 480 mins
 
Total Exposure Time =  24h 00m
Details:
Data Imaged remotely over 7 nights (Nov 9, 11, 17, 18, 19, 20, & 21, 2015).
The Cave is a complex region of emission, reflection and dark Nebulosity
2015, David A. Churchill
Links:

The Astro-Physics 175EDF Telescope           Sh2-155 LRGB Image           Sh2-155 H-alpha Image