Reference: Located an estimated 1,500 light-years from Earth in the constellation Monoceros, the Rosette Nebula is a spectacular region of ionized hydrogen excavated by the strong stellar winds from hot O- and B-type stars in the center of the young open cluster NGC 2244. It is a region of on-going star formation with an age of about three million years. Some good info about the Rosette is at SEDS here. This area is rich in hydrogen alpha wavelength emissions.
See this larger | Don't Miss: Rosette Nebula on my Narrowband page |
| Astronomy Index: I actually want to find something specific Astronomy Pictures: Dick Locke's Astrophoto Gateway page.... |
Combination of 22x4 minute exposures (88 minutes total exposure). Takahashi TOA 130 (a 5" APO refractor) and Canon EOS D20a. This is resized to be 50% of the original. My current image processing workflow is here. The images from this session feature 29 light frames median combined, along with 9 dark frames. On the darks, I did both a median combine and an average combine, and then averaged those together. Temperature ranged from ~51 degrees F at the start of imaging to 42 degrees when I was packing up and doing my last darks. 12/28-29/2006
The rest of the images from this night...
Dick's Pix (Dick Locke's Picture & Image Page)
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