RCOS 16" RC @ f/8.4
SBIG ST
L11K
Astrodon Series I
HaRGB:

Ha = 30 min x 15, 1x1
R
  = 15 min x 9,   1x1
G
  = 15 min x 12, 1x1
B
  = 15 min x 12, 1x1

Data acquired at SSRO
with ACP. Processed
using CCDsoft,
Registar, Sigma
Combine, CCDsharp,
and Adobe PS
The Cocoon Nebula is in
Cygnus --
a beautiful
example of an emission
nebula that surrenders its
detail to a long exposure
with a hydrogen alpha
filter. This rendition of
the Cocoon  is also
noteworthy because it is
the first image taken at
Star Shadows Remote
Observatory in New
Mexico using the recently
installed controller
program known as "ACP".
                    IC5146 -- the Cocoon Nebula
                      Click on image to enlarge

        Mouseover to see initial attempt from 2002