Sh2-155 sometimes called the Cave Nebulae is in Cephus. Data for this image was captured by Dave Pane and processed by John McDonald. This image used RGBL and Narrow band filters in the NBRGB combination script in PI.
Details
July 11 to 20th, 2021.
Planewave CDK 12.5” (f8) on a AP1100GTO with an ASI6200MM camera (binned 2x2), RGBL and Ha,OIII and SII Optolong 6nm narrowband filters.
14 Hours total integration time.