Sh2-155 (also designated Caldwell 9, Sharpless 155 or S155, or LBN529) 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. (Source: Wikipedia)
Technical Details
Dates: 10/1/2024. 11/1/2024
Location: Uckerath, Germany
Imaging Telescope: 8″ GSO f/4 (Carbon Tube)
Imaging Camera: ASI294 MC
Filter: Baader Planetarium UHC-S
Mount: Skywatcher EQ-6
Guiding Telescope: TSO OAG
Guiding Camera: QHY 5L-II
Integration: 45 x 3 min (Gain: 120)
Software: NINA, PhD2, PixInsight
Plate Solution
(Source: astrometry.net)