CAVE NEBULA

Date:	21st August 2009
Scope:	ED80
Camera:	Atik 16ic + Astronomik Ha 13nm Filter
Exposure:	10X400secs Ha
Guiding:	K3 - ZS66 - Modified Toucam SC3 - EQ6 Pro
Location:	BlackLands Farm Camp Site, West Sussex
Comments:	The Cave Nebula, Sh2-155 or Caldwell 9, is a dim and very diffuse bright nebula within a larger nebula complex containing emmison, reflection, and dark nebulosity. Visually it is a difficult object, but with adequate exposure, makes a striking image. The nebula gets its name from the dark lane at the eastern side that has the appearance of a deep cave.