Abell 71 from DSW and my own backyard
I have been subscribing to data from the Deep Sky West (DSW) Observatory for some time. Located in New Mexico, DSW operates several fully equipped, high-end imaging systems that provide access to exceptionally deep and well-calibrated datasets.
In 2018, I received one such dataset featuring the emission nebula Sh2-115, which also includes the faint planetary nebula Abell 71, both situated in the rich star fields of the constellation Cygnus. The combination of glowing hydrogen emission and subtle oxygen structures makes this region a fascinating target for deep imaging.
Data calibration, registration, and final image processing were all performed using PixInsight.
The result was as follows:

The images were taken with the following equipment:
- Location: Rodeo, New Mexico
- Telescope: Astro Physics RH305
- Focal length [mm]: 1118
- Focal ratio: 3.8
- Mount: Paramount ME
- Camera: SBIG STX 16803
- Filter: H:O:S
- Exposure time [min]: 360:320:400
- Resolution: 1.66″/px
In 2013 I took some images from the planetary nebula Abell 71, located in the constellation Cygnus.
Data calibration and registration and the final processing was done with PixInsight. The result was as follows:

The images were taken with the following equipment:
- Location: Krefeld, Germany
- Telescope: 8″ GSO Newton
- Focal length [mm]: 800
- Focal ratio: 4.0
- Mount: Losmandy G11
- Camera: Moravian FW8300
- Filter: R:G:B:H
- Exposure time [min]: 60:60:60:240
- Resolution: 1.21″/px

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