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Here is the wider field
"context" image surrounding the Rosette, the image
I posted last week that taken with the RASA11. In this 5x larger
field taken with a 135mm f/2 lens, we can see that the Rosette
is not alone in the sky but is accompanied by several objects
of great interest. Just below (south) is Sharpless 2-280 a fainter
yet detailed potential future target for consideration. More
interesting is to the upper left of the Rosette - the Monoceros
Loop Nebula. This big ring is a super nova remnant, and a very
old one at that. At the very top of the loop the nebulosity involved
with S monoceros and the Cone nebula starts to appear. For the
second labeled frame, Ive added the field boundaries for the
RASA 11 superimposed in several areas to indicate potential future
shots. This is one of the major advantages of making context
images of your primary target simultaneously!
Technical Data: Context:
Samyang 135mm f/2.4, ASI2600MC, Integration time = 2h total,
Happy Jack, Az
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