[AZ-Observing] IC 5146 - The Cocoon Nebula
- From: "Bernard Miller" <bgmiller011@xxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Wed, 31 Aug 2011 21:42:30 -0700
Hi,
I finally got a break in the clouds and was able to nab a couple of
pictures. The link below shows IC 5146, also known as the Cocoon Nebula. It
is both a reflection and an emission nebula about 3300 light years away in
the constellation of Cygnus. A reflection nebula reflects the light of
nearby stars, while an emission nebula is formed when light from nearby
stars ionizes the gas and makes the nebula glow. This nebula does a little
of both. The IC 5146 actually refers to the star cluster at the center of
the nebula while Sh2-125 is the actual nebula. The nebula is about 15 light
years in diameter. You can also see the dark nebula Barnard 163 which
surrounds the nebula and forms a dark trailing cloud extending to the west
of the nebula (to the right in the picture.
http://www.azstarman.net/IC5146_CROP.htm
http://www.azstarman.net/IC5146.htm
Bernard
--
See message header for info on list archives or unsubscribing, and please
send personal replies to the author, not the list.
Other related posts:
