it accepted theta Cyg! (Halifax)

Wow. I had tried before but the BGO robot protested saying theta Cygni was too bright. I submitted a request again, on a whim, centred on GSC 03564 1184—added to the queue! All right.

I successfully imaged the multi-star system.

Luminance only, 3 seconds subexposures, 10 stacked shots. FITS Liberator, Paint.NET. North is up; left is east.

I'm not exactly sure, now, why I tried imaging this system. Yes, I've not split A and B. But SkyTools shows they are 2.9 seconds of arc apart. And that's well below the limit I have been able to resolve things with the Burke-Gaffney gear. And certainly in various attempts in FITS Liberator I was not able to expose the tight (and dim) B star.