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Got it
I printed a map of the Boomerang neb area with a 1 degree field yesterday. It was clear and cold here last night so I had a go at seeing it at 7pm with the 12" Dob. Started with a 21mm EP and UHC filter and could only just see it. Put an 8mm in with no filter and it was easier, although looking at the map with a faint red LED torch didn't help. Waited a while took a deep breath and it was visible without averted vision but very small. I just checked Scott's image and it was definitely it, I could see both of the stars (mag 13.8 and 15.1 according to Guide) next to it. I think the mag 15.1 star (GSC 8651290) is brighter than that.
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