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This large nebula in
Scorpius is very near Antares and M4. When I imaged this area
up in Happy Jack with its pristine skies recently with the Stellarvue
SV80S and an hour of data with the CMOS camera, I could only
see the faint wisps to the stars upper right. Back home in Payson,
I then took the left hand image seen here, 2h of RGB data and
obtained a similar amount of nebulosity but far more resolution
of the structures in the wisps as see here.
Over several months,
I continued to shoot this target on every clear night to get
the hydrogen alpha data off the noise floor. After 6 hours of
exposure time, there was sufficient signal to see the full extent
of this nebula. And what a massive object this is. The red now
extends all the way around the star, and the wisps to the upper
right have beautiful internal structures.
This object, also known
as Sh2-9 is 80 arc minutes in size and barely fit in the field
here.
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