Photoshop CS and Noel Carboni's actions.
PixFix32 (pre-beta) to
repair column defects.
CCDStack to calibrate,
register, normalize, data reject, combine the sub exposures.
Noiseware Pro, a PhotoShop plug-in.
North is to the left.
This is a close up
view of an interesting area inside the Rosette Nebula. NGC
2237-9 are a large, circular hydrogen region located near one end of a
giant molecular cloud in the Monoceros region of the Milky Way
Galaxy. The open cluster, NGC 2244, is closely associated with the
nebulosity, the stars having been formed from the nebula's matter.
The Nebula is about 100 light-years across and is about 5000
This image, captured
with a hydrogen-alpha filter, shows the extent of the hydrogen gas.
In true color, it glows with the red light characteristic of
hydrogen atoms recombining with long lost electrons, stripped away
(ionized) by energetic starlight.