versions: 1680 x 1050 2169 x 1454
Emission/reflection nebula, open cluster
NGC 2264 contains
the open cluster commonly called the Christmas Tree Cluster, and the Cone Nebula. The base
of the Christmas Tree is formed by the magnitude-4.7 star S Monocerotis, with the apex of
the tree pointing to the left, next to the Cone Nebula.
102-ED/ST-10XME/Astrodon LRGB filters/Paramount ME
Exposures: LRGB: L 9 x 10 minutes: R 9 x 10 minutes: G 9 x 10
minutes: B 9 x 10 minutes: RGB binned 2x2.
Date: January 16, 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.