Cocoon Nebula (also known as IC 5146 and Collinder 470) lies four
thousand light years away and spans approximately 15 light years.
It is a combination of emmision and reflection nebula, primarily
the former. It is a star-forming region containing a cluster of
very young (i.e., a few hundred thousand years old) stars that excite
the hydrogen gas from which they were formed. Their light is also
reflected by some of the surrounding gas and dust.
dark nebulosity that surrounds the Cocoon Nebula is Barnard 168.
It obscures some of the stars within the Cocoon.
Color images were focused
usingt the camera's live view. They were reduced, aligned and combined
in ImagesPlus. Ha images were focused, reduced, aligned, and combined
in CCDSoft. The color nad Ha images were aligned in RegiStar. They
were then blended and adjusted in Photoshop. Finally, Topaz Detail
and DeNoise were applied.
first light for this scope when capturing the color images.