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....
By popular demand, I also put up the raw destarred H-alpha.
Previous versions of SH2 119.
Sh2 124 H-alpha RGB From Sierra Remote Observatory:
SRO Sh2 124 H-alpha Discussion of GHS aspects of processing:
GHS Forum DiscussionFrom GalaxyMap:Although very little appears in the scientific literature on the mysterious HII region Sh 2-124, located some distance to the west of the Cep OB1 association, recent detailed hydrogen-alpha imaging done for the IPHAS project reveals
the structure of this violin-shaped nebula in spectacular detail.
Infrared imaging from MSX
reveals a bubble in this direction.
Felli and Harten give a list of 5 ionising stars, including the O7.5 class
LS III +50 28, and support the BFS distance estimate of 2600 parsecs. However, other sources argue that this star may be too cool to be the ionising star.
Chini and Wink identify two uncatalogued ionising stars, with classes O7V and B2V, and give a distance estimate of 3600 parsecs.
Crampton, Georgelin and Georgelin give a kinematic distance (based on gas velocity) of 4400 parsecs.
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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