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Old 26-11-2016, 12:56 PM
Placidus (Mike and Trish)
Narrowing the band

Placidus is offline
 
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Brilliant!

Things we're especially glad to see:

(1) Just beyond N11 (Thor's Other Helmet), toward 5:30 from the centre, there's a very tiny nebula. We're really glad to see that in your image, it's also strong in SII. So that's yours, Fred V's, and ours, all showing that blob to be almost implausibly rich in SII.

(2) Toward top right in your nicely widefield image, there are two or three very distinct arcs of stars almost faultlessly aligned and centred on NGC 1761. This entitles us to write a fairy story which says that once upon a time there was a wicked king who forged iron into heavy things in the heart of a giant star, liberating neutrinos and initiating total collapse of his kingdom. The resulting shock waves compressed the distant lands, triggering these beautiful arcs of stars that you have shown. No doubt there are other explanations.
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