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 is a monochrome from the Ha filter.
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.