Rosette-Cone Nebulae

NGC2237-2264RRGB2(500).jpg (274826 bytes)

Higher-resolution versions:  1680 x 1050  1920 x 1200

Equipment: Nikkor 180mm f/2.8 lens/STL-11000M/Astrodon LRGB filters/Paramount ME
F-ratio: f/4
Exposures: RRGB: R 12 x 20 minutes: G 12 x 5 minutes: B 12 x 5 minutes: GB binned 2x2.
Date: January 17, 2009
Location: Landers, California, USA
Technical Notes: Individual exposures were dithered and sigma combined. The RGB image was created in Registar 1.0. Reduce Noise and Gaussian Blur were applied to the RGB image. A high-pass filter of 4 pixels was applied to a copy of luminance image.

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