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Rosette nebula is one of the object that better resemble the name they have. It's around the NGC 2244 open cluster and it's nebulosity is catalogued in four parts: NGC 2237, 2238, 2239, 2246. There are many dark nebulas, the bigger are visible in the enlargement at bottom.
See also:
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| Optics | Pentax 75 apocromatic refractor, 75mm diameter |
| Focal Lenght | 500 mm |
| Focal Ratio | f/6,7 |
| Exposure Time | 45 min exposure |
| Film | Kodak E200 |
| Developement sensibility | 320 ISO |
| Location | Pian dell'Armà (PV, Italian Appennines), at 1400m |
| Date and time of exposure start | 11 january 2002, 23.51 UT |
| Mount | Meade 8" |
| Tracking | ST4 |
| Temperature and humidity | T=-6°C, RH=90% |
| Notes | - |
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