Rosette Nebula Pictures
Astrophotography Images by Dick Locke. Copyright © 2005-2010 by Dick Locke. All Rights Reserved. Contact and Image Use Information

Rosette Nebula 2010 Blend

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.

2010 Rosette Nebula HD Crop "Blend" - Click for full-size version

Click on the image above for the HD-sized version. The above two images combine of over 5 hours of color exposure, plus a similar amount of H-alpha (Narrow band) stuff with the RGB version below.

Above: Rosette Nebula Picture - Non Blended Version

64 frames, combining 22 x 4 minutes (below) from the Canon EOS D20a DSLR and 42 x 5 minutes from HAS Site using the CCD: (Takahashi TOA 130 Telescope (a 5" APO refractor) with reducer, AP 900GTO mount, and QHY8 CCD Camera & normal workflow. )

Rosette Nebula Picture

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. 12/28-29/2005. The rest of the images from this night...

Don't Miss: Rosette Nebula on my Narrowband page

See this larger picture for a color close-up of the "Bok Globules."

Rosette Nebula D100 effort pales...

Stack of 5+ images. Equipment: Nikon D100 DSLR, Takahashi TOA 130 (see myTakahashi TOA 130 page) with Reduce, Losmandy G11 mount, SBIG STV autoguider using an ST80. 3/11-12/2005, NHAC Neal Site. This was a major image processing challenge due to weak red response in the DSLR.

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