Repeating one more of the Sharpless2 Group to see what my new CMOS system can find with a deeper look at the H-alpha here.... I tried various enhancements to increased the sense of 3D here, but this is how it came out of the GHS box. A lot of natural texture for 2.5 h.
Previous version of SH2 137. This is with an ATRC10 and 11h on the CCD.
Sh2 137 HA RGB Discussion of GHS aspects of processing:
GHS Forum DiscussionFrom GalaxyMap:This HII region lies at a similar direction and distance as the
Cepheus Bubble, a huge expanding shell of gas and dust surrounding the
Cep OB2 association.
Avedisova identifies 5 ionising stars. The hottest of these is the O9.5 II multiple giant
HD 207198.
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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