Last night turned out to be a very satisfying night. Seeing was predicted to be above average, and it was good enough to go after some fairly close pairs, but not for the movement pairs. Rather than run through my Struve list I went through Burnhams, and they provided plenty challenge pairs which the night could still support.
Another special sight was Jupiter, which had an Io shadow transit. The shadow was about midway when I first looked at it, a little behind the Great Red Spot. There was a great swirl and eddies of bands around the spot, and I could see a redder/darker section of it. Over the next half hour or so the Spot continued to move towards the limb and the round shadow caught up to it along its lower edge -- and by that time I could see the bright yellow-orange disk of Io, which I then watched slip past the limb into open sky.
STF 331 AB: 508; 150x: Bright white A, wide unequal B. 98% PRO, 1,799 AU WS, 3.5+2.5 Msol, it is likely binary and needs an orbit.
03h 00m 52.18s +52° 21' 06.5" P.A. 85.00 sep 12.0 mag 5.21,6.17 Sp B7V+B9V dist. 140.65 pc (458.8 l.y.)
BU 1175 AB: 508; 1270x: Light orange A, B is blue due to its faintness, nearly 2 Dm. Suspected as a brightening in A's diffraction at 635x, seen clearly split at high power with seeing with PA nearly due west. No Gaia data for the secondary.
03h 05m 46.39s +43° 42' 08.9" P.A. 275.00 sep 0.7 mag 7.23,8.80 Sp F5+A3 dist. 197.63 pc (644.67 l.y.)
BU 526 AB: 508; 150x: Algol. B star not hard to pick out with low power, very wide. No Gaia data.
03h 08m 10.13s +40° 57' 20.3" P.A. 156.00 sep 59.4 mag 2.11,12.70 Sp B8V dist. 27.57 pc (89.93 l.y.)
BU 1293 AB: 508; 280x: Delicate, white A and B is faint and grey, small, well split, like a ghost. -1% PRO with the same error, 581 AU WS, 3.4+1.5 Msol, it is not likely binary.
02h 54m 00.98s +47° 09' 39.2" P.A. 350.00 sep 2.1 mag 6.81,10.45 Sp B9 dist. 194.55 pc (634.62 l.y.)
BU 788 AB: 508; 280x: A probably paired with another wide bright star. AB is closely separated, 2 Dm, very pretty. Split with low power, better >250x. 6% PRO with 2% error, 1,773 AU WS, 3.1+2.0 Msol, it probably is not binary.
03h 35m 14.22s +42° 35' 26.9" P.A. 303.00 sep 2.6 mag 8.97,11.07 Sp A0 dist. 869.57 pc (2836.54 l.y.)
BU 533 AB: 508; 280x: Fine pair, near equal. -12% PRO, 103 AU WS, 1.6+1.7 Msol, it is not binary.
03h 35m 37.81s +31° 40' 48.7" P.A. 221.00 sep 1.0 mag 7.55,7.74 Sp F4V dist. 85.98 pc (280.47 l.y.)
BU 535 AB: 178; 560x: Atik. B appears as a persistent brightening on A's diffraction ring, resolves to a point with seeing, much fainter than A. No Gaia data for the secondary.
03h 44m 19.13s +32° 17' 17.7" P.A. 21.00 sep 1.0 mag 3.91,6.70 Sp B1III dist. 343.64 pc (1120.95 l.y.)
BU 880 AB: 508; 280x: Gorgeous hairline split, unequal. Atik in the corner of the field. No Gaia data for the secondary.
03h 44m 34.19s +32° 09' 46.2" P.A. 18.00 sep 0.6 mag 9.28,9.51 Sp B5V dist. 151.98 pc (495.76 l.y.)
BU 263 AB: 508; 500x: Resolved with seeing, slightly unequal light orange stars. No Gaia data for the pair.
03h 56m 27.06s +33° 10' 57.7" P.A. 109.00 sep 0.6 mag 9.03,9.24 Sp F8
BU 546 AB: 508; 280x: Perfect near equal white stars, nice split. 50% PRO, 159 AU WS, 1.5+1.5 Msol, it is very likely binary and needs an orbit.
04h 11m 26.98s +41° 51' 35.2" P.A. 230.00 sep 1.0 mag 9.31,9.39 Sp F8 dist. 319.49 pc (1042.18 l.y.)
BU 310 AB: 508; 150x: Easy wide pair. -21% PRO, it is not binary.
04h 22m 00.26s +39° 56' 03.3" P.A. 173.00 sep 18.9 mag 7.10,12.62 Sp F8 dist. 54.56 pc (177.97 l.y.)
BU 789 AB: 508; 280x: Lovely unequal, close split, white. No Gaia data for the secondary.
04h 31m 33.56s +37° 39' 08.7" P.A. 323.00 sep 0.9 mag 8.70,9.42 Sp F8 dist. 81.43 pc (265.62 l.y.)
BU 306 AB: 508; 280x: Bright A and much fainter blue B, well separated. Best seen >200x to separate B from white A's diffraction. -1% PRO, it is not likely binary.
02h 43m 51.25s +25° 38' 18.0" P.A. 19.00 sep 2.9 mag 6.40,10.36 Sp A3V dist. 104.28 pc (340.16 l.y.)
BU 307 AB: 508; 150x: Wide, much fainter B. -76% PRO, it is not binary.
02h 47m 38.61s +29° 40' 42.8" P.A. 316.00 sep 16.0 mag 7.11,11.60 Sp B7III dist. 350.88 pc (1144.57 l.y.)
BU 525 AB: 508; 500x: Lovely close split, unequal, white. No Gaia data.
02h 58m 53.11s +21° 37' 03.9" P.A. 275.00 sep 0.5 mag 7.47,7.45 Sp A3 dist. 151.52 pc (494.26 l.y.)
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