| Name | Rosette Nebula |
| Designation(s) | Sh2-275, C49, NGC 2237 |
| Object Type(s) | Emission Nebula |
| Relevant Catalog(s) | All (Chron), Caldwell, Sharpless |
| Obs. Lat/Long | 42° 17', 073° 57' |
| Constellation | Monoceros |
| Date and Time Observed | 2024-02-03 20:53:00 |
| Instrument | Askar V 60mm w reducer f4.5-270mm FL |
| Camera | ASI294mc-Pro |
| Image Details | Up is 78.3 degrees E of N. Total integration time was 20m. Exposures 30s@375g, L-eNhance Filter. Darks subtracted, no flats. Dithered and recentered in SharpCap. No guiding.. |
| Description | This is a classic astro-imaging target: it's large, dramatic, and quick to image with the right filter. It's on Caldwell's list of favorite amateur targets. Looking at the annotation is particularly interesting: there are 5 NGC catalog entries in this image, literally the brightest features within the overall nebula. It's a case of the Herschel's not seeing the forest for the trees (er... nebula for the bright spots). We can infer it's a challenging visual target, certainly without filters. I've listed it as NGC 2537, which is common. But it's really a hack as the original meaning of the object was only part of the nebulous region. Because the NGC catalog is so popular, and 2537 was the first in the list, by convention it's come to mean the whole target. |
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