Sadir region

[almcl]

Inspired by Steve's (Steppenwolf) post on Simeis 57 and the responses, I thought I'd have a go at the same general area in Ha with my 200 mm lens, while waiting for astro dark to return and the moon to go away.  Tried a mosaic for the first time as well.

There does seem to quite a bit going on in the area and I haven't sorted out all the different structures yet, but here's where it's got to so far (4 panel mosaic with Canon 200mm lens on Canon 700D, 12mm Ha filter, with approx 1 hour's integration for each panel):

The crescent, the propeller and the cooling tower are all there, but so are quite a few other items which didn't show up on Astrometry's solve (http://nova.astrometry.net/user_images/2977395#annotated) if anyone would care to help out with identifications, I'd be grateful?