NGC6883 – Open Cluster (SHO)
At the centre of the image lies NGC6883, a young open star cluster in the constellation Cygnus. It has an apparent angular size of about 35 arcminutes, a visual magnitude of +8.0 and is approximately 4,500 light-years away. It contains around one hundred stars, many of them hot spectral-type B stars. The photographed field also shows the region's extensive emission nebulosity and the distinctive bubble associated with the Wolf-Rayet star WR134, rendered as a narrowband SHO-palette composition.
General information
- Constellation
- Cygnus
- Category
- Clusters and stars
- Date
- 15 August 2025
Capture
- Total time
- 8h 25min
- Subframes
- 360s (Ha: 10x, OIII: 5x, SII: 5x) bin1; 300s (Ha: 18x, OIII: 44x, SII: 15x) bin1
- Gain / Offset
- 125 / 30
- Calibration
- 30 flat frames, 30 dark-flat frames and 40 library dark frames, without bias frames
Equipment
- Telescope
- TS102 f/5.6
- Camera
- ASI294MM at -10ºC
- Filters
- Ha, OIII and SII Astronomik, 6 nm
- Mount
- Sky Watcher Wave 150i
- Guiding
- PHD2, Guide scope 60mm/f4 + ASI220MM + PegasusAstro UCH + PPBMicro
- Focuser
- ZWO EAF
- Filter wheel
- ZWO EFW 7pos
Processing and environment
- Processing
- Stacked and post-processed with PixInsight 1.9.3
- Acquisition
- NINA
- Location
- l'Ampolla
- Sky
- Bortle 4