Repeating one more of the Sharpless2 Group to see what my new CMOS system can find.
Previous CCD version.
Sh2 74 HA RGB Discussion of GHS aspects of processing:
GHS Forum DiscussionFrom GalaxyMap:This nebula is ionized by the O9V class Sherwood 182 (
[F89b] S74 1). It is either at the same distance as the powerful radio source
W 50, or sits in front of it, depending upon the authority.
Both W 50 and Sh 2-74 can be seen in this
radio image. This image suggests that W 50 is a distinct object but might be joined to Sh 2-74 by a spur visible at radio frequencies.
The microquasar
SS 433 is part of W 50. This bizarre object, also called
V1343 Aquilae, is spewing out two jets of material at more than one-quarter the speed of light.
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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