Another recast of a Sharpless2 object. Galaxy Map notes how dim this is, but it comes out with the GHS stretch and the CMOS camera.
Only 1h H-alpha.
Below is 17h with my old CCD and a Tak 180 ED:
Sh2 102H-alpha RGB GHS Forum DiscussionFrom GalaxyMap:The faint red arc of nebulosity is almost lost in the glare of the F5Iab supergiant 41 Cygni.
Avedisova associates Sh 2-102 with the Lynds dark nebula
LDN 844 and places them both in the star formation region
SFR 71.40-5.31. As you can see in
this false colour hydrogen-alpha image, the closest known potential ionising star for this faint nebula is the B1.5 V
HD 195907.
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 2600 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...
Comments