Sh2-275 (ROSETTE Nebula)
From time to time I obtain data sets from remote observatories. One of my favorite providers is the Insight Observatory with telescopes in e.g. Chile, Namibia, New Mexico etc. One of the data sets I received, was data from the HII-region Sh2-275 assossiated withe the open cluster NGC 2244 located in the constellation Monoceros.
The images were taken with the following equipment (AFIL-1, Insight Observatory):
| Location | Lijiang, China |
| Date | 10/23/2021 to 11/02/2021 |
| Telescope | AG10 CDK |
| Focal length [mm] | 1665 |
| Focal ratio | 6.7 |
| Mount | SkyWatcher EQ8RH |
| Camera | FLI Proline 6303 |
| Filter | Hα:[OIII]:[SII]:R:G:B |
| Exposure time [min] | 315:555:675:30:30:30 |
| Resolution | 1.11″/px |
Data calibration and registration and the final processing was done with PixInsight. The result was as follows:
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