Sh2-129, Outters 4 from my „Jade“ observatory

This image was taken with my new equipment on the second pier „Deep Sky Pier“ in my „Jade Observatory“.

Sh2-129 (The Flying Bat Nebula) is a large HII region shaped and ionized by massive stars within the Cepheus OB2 association and part of the Cepheus bubble.

Outters 4 is a [O III]-emitting structure with a striking bipolar morphology within Sh2-129.

Data calibration, registration and the final processing was done with PixInsight. The result was as follows:

Here is an overview of the used equipment and the exposure times:

• Date: August and September 2025
• Location: Varel
• Telescope/Lense: 6″ Lacerta Newton
• Focal length [mm]: 450
• Focal ratio: 3
• Mount: Skywatcher EQ 8
• Camera: Lacerta Deepsky 2600 M
• Autoguiding: Off-Axis with ZWO Asi 120 MM Mini
• Filter: R:G:B:[Hα]:[OIII]
• Exposure time [min]: 45:45:40:250:370
• Resolution: 1.72/px