Another version of this group using my new CMOS camera.
The final version used the Narrowband Assistant PI script from
@Alex Woronow :
I did not use StarXTerminator on this rather just denoised with NoiseXTermninator and trusted to GHS to not blow out the stars.
Processing:
1. Stack etc
2. Denoise
3. NB Assistant
4. Photometric Callibration
5. General Hyperbolic Stretch (GHS to 7 symmetry point at top of blue; Linear Black Point Set; GHS again at top of blue)
6. Photoshop Color Enhancements (Topaz Studio and 3D LUT)
Previous version from a long time ago on CCD from SRO.
Sh2 199 Soul Nebula (LBN 667) Bicolor from SRO Previous version 198 lower left.
Sh2 198 H-alpha RGB Discussion of GHS aspects of processing:
GHS Forum DiscussionFrom GalaxyMap:Often called the Soul nebula by amateur astronomers, the infant-shaped Sh 2-199 is ionised by stars belonging to the IC 1848 cluster and is also the location of the radio source W5. Like the Heart nebula (Sh 2-190) and surrounding smaller nebulae, Sh 2-199 is embedded in the
Cas OB6 association.
Kharchenko gives a distance of 2002 parsecs and an age of 4.4 million years for IC 1848 and lists 5 ionising stars:
HD 17505 (O7, although SIMBAD gives an O6Ve class),
HD 17520 (O9V),
HD 237019 (O8V),
HD 237007 (B0V), and
HD 237011 (B2, although SIMBAD gives a slighter hotter B1.5 class). Avedisova places Sh 2-199 and Sh 2-201 in star formation region
SFR 137.57+1.08, with 65 components, including 16 infrared sources, 2 masers and 4 young stellar objects.
GENERAL NOTE ON SHARPLESS2 OBJECTS>>>>>>>>>>>>>There are 313 Sh2 objects. All now imaged.
This is my collection:
Sharpless2Wide-Angle Hydrogen Alpha Nikon Image Sh2 79-171Please note there is also a Sharpless2 Group with now more than 2700 examples.
Sharpless2 GroupOther useful links include:
Gary Imm's CollectionGalaxyMap's CollectionThe Sharpless CatalogThe MDW H-alpha Sky SurveyReiner Vogel's detailed observing catalogHope you enjoy these obscure but interesting objects...
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