Overview
The centre of the Rosette is the birthplace a star cluster now just a few million years old, whose strong stellar winds have carved out the “hole” in the nebula. The Rosette is also known as Caldwell 49, and the central stars are NGC 2244.
Background
This was a fun target to image because there’s so much detail to bring out. It’s tricky to get the colours looking nice during processing though. I want to come back to it in the future and have another go!
Imaging details
| Date | February 2021 |
| Location | Bristol, UK (Bortle 8) |
| Telescope | Askar FRA400 f/5.6 Quintuplet APO Astrograph |
| Camera | ZWO ASI 2600MC-PRO |
| Mount | Orion Sirius EQ-G |
| Guide | William Optics 32mm; ZWO ASI 120MM Mini |
| Control | ASIAIR Plus |
| Software | PixInsight, Lightroom |
| Filters | Optolong L-eXtreme (Ha/OIII): 450 x 120 seconds |
| Total exposure time | 15 hours |
| Image credit | Lee Pullen |
Source data
Seestar S50
Here’s the Rosette Nebula imaged using a Seestar S50 from my city centre.
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