Rosette Nebula Picture
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.
See this larger 
picture for a close-up of the "Bok Globules."
 Rosette Nebula Close-Up Smaller version, crop from the picture above, nicely shows some of the dark "globule" stuff. |  Large image with less color saturation. This is the original image I posted, but I decided I liked the more saturated version better. What do you think??? |
|  Rosette Nebula, smaller size version. 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)
hits.
