Allow me to share a few observations from another pleasant bounce around Cygnus. My conditions last night in Greensboro were good: average transparency, excellent seeing, and the gibbous moon favorably hidden away behind some trees to the South, with minimal intrusion upon my work.
I began in the northern portion of the Swan's territory with STF 2658 (7.2/9.4, 5.4"). The low power view with the 32mm Plössl at 56x (2.7mm exit pupil) revealed a lovely triple: A was off-white, B tucked up neatly against the primary and a strong orange despite its magnitude, and C to the southwest with a clear bluish-white color by comparison. Raising the power warmed up A's hue to beige. A fine and unexpectedly colorful trio.
My eye and telescope in good working order, I moved southwest to Delta Cygni (2.9/6.3, 2.8"), which I haven't observed since August of 2018. I first caught a glimpse of B at 90x (1.7mm exit pupil), where it formed nothing more than a persistent lump of extra brightness attached to A and pointing southwest. 120x (1.25mm) gave B more definition, and at 145x (1.03mm) the view was stunning: B was a perfectly round point that remained almost impossibly still as A's diffraction rings undulated around it. A was brightest white color I can remember seeing recently, and B very slightly yellowish. I'm still in the honeymoon phase with my new Maksutov, and I was equally stunned by the optics of this excellent instrument: this is the best diffraction pattern I've seen on any obstructed telescope. It looked almost digitally rendered!
Hopping back northeast, I centered STF 2741 (5.9/6.8, 2") in the finder. This exquisite pair is another one of William Herschel's discoveries, and is H I 97 in his catalog. 56x gave me an elongation pointing north/northeast, and 72x notched the pair. At 90x they were split on and off, but I required 120x to put consistent black space between them. What a gorgeous pair! Very highly recommended.
After a detour to 16 Vul (see my other thread for the report), I returned to Cygnus for the evening's most difficult pair: 60 Cygni (5.4/9.5, 2.9"). In the low-power view, I noticed a brightish and quite wide double to the south; this was the AC pair of S.W. Burnham's no. 1138 (the AB pair is separated by a mere 0.15"). Returning my focus to 60 Cyg, I slowly raised the power, looking carefully for any sign of the elusive companion. 72x, 90x, and 120x gave me nothing, but immediately upon reaching focus at 145x I saw a ghostly grey spot to the south/southeast. At this power I could hold it about 50% of the time, but 200x (0.75mm) brought B out more clearly. A moderately difficult object, requiring magnification and a little patience.
I always like to end with an easy and pretty object, and on this occasion 61 Cygni (5.2/6.1, 32"), Piazzi's famous flying star, fit the bill nicely. This is a stunning pair even in the finder (my "finder" in this case being my 80mm Stellarvue with a 40mm Plössl, for a magnification of 19x). At all powers I saw the same color contrast: A was coral pink, and B brass-colored. What an extravagantly beautiful pair of K-type stars!
That's all for now. Comments and corrections most welcome.