1871 (also designated as Sh2-199, LBN 667, Westhout 5) is an emission
nebula in the constellation of Cassiopeia. It lies 6,500 light years
away and is part of the larger Soul Nebula (IC 1848), a huge star-forming
region consisting of ionized hydrogen gas and accompanying dark
nebula. The dark nebula is shaped by the solar winds of the numerous
young (only one million years old), bright stars within.
TS-Optics 10in. f/5
Modified Canon 650D; raw capture; ISO 3200
H-alpha: SBIG ST-8300 with 12nm Astronomik filter (unbinned)
|| iOptron CEM 60
5L II-M on 60mm guide scope
Color: 30 @ 5 min.
(2.5 total hrs.)
Ha: 30 @ 7.5 min. (3.5 total hrs.)
Images were focused
using the camera's live view and a Bahtinov mask. Color images were
converted in Camera Raw and were aligned and combined in ImagesPlus.
H-alpha images were acquired, aligned, and combined in CCDSoft.
An H-a/Luminance image was created using the Red channel from the
RGB image. The color and Ha-L composites were aligned in Registar
and combined in Photoshop. The final image was adjusted in Photoshop.
Topaz Detail and
DeNoise were applied.
Taken from my backyard
observatory in southeastern Minnesota between October 5 and 16,
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