Telescope: Stellarvue SV80-25 80mm Triplet & Focal Reducer	Designation:Sh2-155 (also designated Caldwell 9, Sharpless 155 or S155) is a diffuse nebula in the constellation Cepheus, within a larger nebula complex containing emission, reflection, and dark nebulosity. It is widely known as the Cave Nebula, though that name was applied earlier to Ced 201, a different nebula in Cepheus. Sh2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 725 parsecs (2400 light-years) from Earth. Sh2-155[4] was first noted as a galactic emission nebula in 1959 in the extended second edition of the Sharpless catalogue, being a part of the much larger Cep OB3 Association. Although Sh2-155 is relatively faint for amateur observation, some of its structure may be seen visually through a moderately sized telescope under dark skies.
Mount: Ioptron IEQ30 Pro	Constellation: Cepheus.
Camera: ZWO ASI294 OSC with ZWO Duo filter	Imaged With ZWO ASIAIR
Guiding:ZWO 120 Mini Guider	Type:Nebula and more see Designation.
Exposure Data: 82 - 10 minute sub exposures with the ZWO Duo Filter.	Position: R.A. 22h 56m 43s , Dec +62° 37' 04"
Processed using PixInsight and PhotoShop image processing	Date: August 2021
Data Acquisiton, Reduction and Processing by Jim Janusz	Imaging Location: Roadrunner Observatory, backyard Palm Desert