Starry Vistas by Don J. McCrady
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The Rosette Nebula

The Rosette Nebula is a very bright and very large emission complex in the constellation of Monoceres. The open cluster NGC 2244 contains many hot young stars whose stellar winds are slowly hollowing out the nebula. The Rosette is nearly 2° in size and is easily found in just about any amateur telescope.

Narrowband

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This image is false colour, with Sulfur-II mapped to red, Hydrogen-alpha mapped to green, and Oxygen-III mapped to blue.

Takahashi Sky 90 at f/4.5
SBIG STL-4020M (remote guide head)
Takahashi EM-200
H-Alpha: 7x20 minutes
Sulfur-II: 9x20 minutes
Oxygen-III: 8x20 minutes
Processed with Maxim/DL, CCDStack, and Photoshop CS4
Noel Carboni's Astronomy Tools


HαRGB

Click here to see this in Microsoft WorldWide Telescope (must be installed).

Click for full resolution

Takahashi Sky 90 at f/4.5
SBIG STL-4020M (self-guided)
Takahashi EM-200
Hutech LPS filter
H-Alpha: 2h20m (20 minute exposures)
RGB: 40 minutes each channel (5 minute exposures)
Maxim/DL, CCDStack, ImagesPlus, and Photoshop CS3
Noel Carboni's Astronomy Tools


Hα

Click for full resolution

Takahashi Sky 90 at f/4.5
SBIG STL-4020M (self-guided)
Takahashi EM-200
Hutech LPS Filter
Ha: 2:20 (20 minute subexposures)
Processed in Maxim/DL and Photoshop
Noel Carboni's Astronomy Tools Actions


Rosette in RGB with Digital Rebel

Click for full resolution