Date Posted: 5/14/2025
Date Taken: 7/25/2020, 7/26/2020, 7/27/2020
Scope: Planewave CDK 12.5 f/8, 2541mm
Camera: SBIG STL-11000 with Astrodon Tru-Balance E-Series Gen2 filters
Temp: -10C
Mount: Losmandy Titan
Guiding: On-axis via ONAG-XM and SX UltraStar at 2541mm. FocusLock real-time focus for focusing.
Exposure: LRGB, 310:85:100:115, total 6 hours, 10 minutes. Luminance 10min unbinned; RGB 5min binned 2x2.
Calibrated and Stacked with CCDStack2. Processed with CS4.

NGC 7129 is a reflection nebula located about 3000 light years away in Cepheus. The nebula is illuminated by a young cluster of stars, estimated to be only 1 million years old. Of particular interest (to me, at least) are several bright red structures, believed to be Herbig-Haro objects. They hide newly formed or still-forming stars that are not yet directly visible.

This is a re-process of an older image taken in 2020.