RGB (top image),
H-alpha + RGB (bottom image)
IC 1396 is a gigantic
hydrogen-alpha-emitting cloud of gas in the northern sky Milky Way that I return
to periodically. An earlier H-alpha CCD image with additional details can be
seen here and an much older film image is here.
|| 2004-08-17, 18
Nikkor 180 mm telephoto
at f/5.6 on ST-10XME (Mandel Adapter) and
CFW-8A color wheel. Piggybacked on the
1200 GTO mount and guided
internal guide chip.
14 five minute
exposures with each filter and 1x1
RGB filters in SBIG CFW-8 filter
Raw frames debloomed
with Wodaski's Debloomer plug-in. Stacked, combined,
4.03. Stretched with
levels and curves in PhotoShop CS. The red
frame was then added as a luminosity layer in Photoshop. Noise reduction
Digital GEM Pro.
The above image consists of the RGB frames
used in the top image plus H-alpha frames collected on 21 and 22 August. I
like the H-alpha + RGB version better.
minute H-alpha exposures plus 14 five minute exposures with the RGB filters;
all with 1x1
to New Stuff