A very productive couple of hours with the 6-inch. Seeing was slightly better than average, and there was some marine haze, but still a nice night with some challenging pairs. All from the CDSA list -- which unfortunately lacked accurate parallax data to reference, so many of them are not binary.
BU 391 AB: 152; 250x: Hairline split, near equal. I can tell it's double at lower powers and even in the 60mm scope, lopsided shape at lower powers. -5% PRO, 98 AU WS, 1.9+2.0 Msol, it is possible to be binary, SOC grade 4 orbit 575-year period, it won't make much appreciable change in PA or separation for the next 30 years.
00h 09m 21.02s -27° 59' 16.5" P.A. 258.00 sep 1.3 mag 6.13,6.24 Sp F4IV-V dist. 77.46 pc (252.67 l.y.)
FOX 127 AB: 152; 250x: The parent of BU 305 AC, bright white a, b seen rather closely separated with foveal coaxing, the can hold, best seen with higher powers. No Gaia parallax data for the secondary. BU 305 AC do not share parallax ranges, it is not binary.
02h 38m 17.86s +37° 43' 36.6" P.A. 270.00 sep 6.5 mag 6.16,11.30 Sp F5IV dist. 82.3 pc (268.46 l.y.)
HJ 1957 A-BC: 152; 125x: 1 Dm, well split. -78% PRO, it is not binary.
00h 21m 52.40s -23° 00' 27.7" P.A. 27.00 sep 6.1 mag 7.67,9.15 Sp G0 dist. 59.49 pc (194.06 l.y.)
HJ 1991 AB: 152; 125x: 3 Dm wide. -92% PRO, it is not binary.
00h 38m 48.78s -25° 06' 28.2" P.A. 95.00 sep 47.2 mag 6.58,9.73 Sp K0 dist. 273.97 pc (893.69 l.y.)
HJ 1992 AB: 152; 125x: 1 Dm, wide. -54% PRO, it is not binary.
00h 38m 53.06s -25° 35' 44.9" P.A. 248.00 sep 45.8 mag 7.78,8.85 Sp A7V dist. 140.06 pc (456.88 l.y.)
HJ 2004 AB: 152; 125x: Closely split, 2 Dm. 23% PRO, 498 AU WS, 2.4+1.3 Msol, and RVD 2.0 < EV 3.6, it is likely binary and needs an orbit.
00h 57m 37.76s -18° 59' 55.0" P.A. 237.00 sep 3.3 mag 7.04,9.77 Sp A2Vn dist. 141.64 pc (462.03 l.y.)
MLF 1 AB: 152; 250x: B is quite faint, only with seeing, well split, very small compared to bright white A. -89% PRO, it is not binary. Muller, F., who in 1889 published a paper with two discoveries.
00h 45m 41.71s -16° 25' 27.2" P.A. 197.00 sep 2.9 mag 6.54,10.41 Sp F2V dist. 89.05 pc (290.48 l.y.)
S 390 AB: 152; 125x: White near equal stars, well split. Also seen with 60mm 40x. 41% PRO, 429 AU WS, 1.3+1.3 Msol, and RVD 0.1 < EV 3.3, it is likely binary and needs an orbit.
00h 58m 09.75s -15° 40' 58.0" P.A. 216.00 sep 6.5 mag 7.77,7.86 Sp dF6+dF7 dist. 59.45 pc (193.93 l.y.)
STF 12 AB: 152; 125x: White stars, 1 Dm, well split, also seen with 60mm 40x. -17% PRO, it is not likely binary.
00h 14m 58.84s +08° 49' 15.5" P.A. 148.00 sep 11.2 mag 6.06,7.51 Sp A9V+F3V dist. 77.76 pc (253.65 l.y.)
STF 81 AB: 152; 125x: Wide B seen with averted vision then can hold. 91% PRO, 1,502 AU WS, 1.7+0.7 Msol, but RVD 3.3 > EV 1.7, it is not binary.
01h 00m 03.65s -02° 01' 08.1" P.A. 68.00 sep 18.0 mag 7.41,11.10 Sp F5 dist. 89.61 pc (292.31 l.y.)
STF 88 AB: 152; 125x: Clear light yellow-white equal stars, wide, also seen with 60mm 40x. 29% PRO, 2,704 AU WS, 2.8+2.5 Msol, it is possibly binary and needs an orbit.
01h 05m 40.93s +21° 28' 23.6" P.A. 159.00 sep 29.9 mag 5.27,5.45 Sp B9.5V+A0V dist. 84.32 pc (275.05 l.y.)
STF 133 AB: 152; 250x: Light orange A has a faint close companion, around 1" separation. B is also a pair, well split, bluish color, easier to see high power. AB only 1% PRO, 429 AU WS, 2.7+1.2 Msol, might not be binary. CD -11% PRO, it is not binary either.
AB: 01h 32m 47.71s +35° 50' 34.1" P.A. 191.00 sep 3.0 mag 6.79,9.44 Sp K3III dist. 136.24 pc (444.41 l.y.)
CD: 01h 32m 47.42s +35° 50' 14.8" P.A. 170.00 sep 5.1 mag 10.49,10.68
STF 141 AB: 152; 200x: Very closely split, near equal. -10% PRO, it is not binary.
01h 40m 03.42s +38° 58' 10.7" P.A. 303.00 sep 1.7 mag 8.28,8.61 Sp F5 dist. 108.11 pc (352.65 l.y.)
STF 179 AB: 152; 125x: Near equal, closely split with low power. 10% PRO, 321 AU WS, 1.7+1.4 Msol, and RVD 0.6+4.1, it is likely binary and needs an orbit.
01h 53m 10.72s +37° 19' 16.3" P.A. 160.00 sep 3.5 mag 7.59,8.14 Sp F2V dist. 79.49 pc (259.3 l.y.)
STF 222 AB: 152; 125x: Easy, wide, bright near equal yellow-white stars. 21% PRO, 2,239 AU WS, 2.7+2.3 Msol, RVD 0.5 < EV 2.0, it is likely biary and needs an orbit.
02h 10m 52.83s +39° 02' 22.4" P.A. 36.00 sep 16.6 mag 6.05,6.71 Sp B9V+A1Vn dist. 139.66 pc (455.57 l.y.)
STF 245 AB: 152; 125x: Unequal wide pair. 89% PRO, 1,159 AU WS, 1.9+1.5 Msol, it is possibly binary and needs an orbit.
02h 18m 36.27s +40° 16' 43.7" P.A. 293.00 sep 11.3 mag 7.26,8.03 Sp F3V+F3V dist. 120.63 pc (393.5 l.y.)
STF2985 AB: 152; 125x: Light orange, slightly unequal wide stars.
STF2987 AB: 152; 200x: Light orange A, 3 Dm B, well split. -29% PRO, it is not binary, despite the SOC grade 5 orbital solution.
23h 10m 21.28s +49° 01' 06.0" P.A. 149.00 sep 4.2 mag 7.42,10.41 Sp G1V dist. 45.39 pc (148.06 l.y.)
STF2992 AB: 152; 125x: Wide, 1 Dm white stars. 7% PRO, 2,716 AU WS, 2.3+1.5 Msol, but RVD 1.8 > EV 1.6, it is not binary.
23h 13m 06.32s +40° 00' 10.1" P.A. 285.00 sep 14.3 mag 7.66,9.59 Sp A3+F0 dist. 1666.67 pc (5436.68 l.y.)
STF3004 AB: 152; 125x: White stars, very unequal 4 Dm, well split. -62% PRO, it is not binary.
23h 20m 44.10s +44° 06' 58.2" P.A. 177.00 sep 13.6 mag 6.26,10.13 Sp A5Vn dist. 75.24 pc (245.43 l.y.)
STF3042 AB: 152; 125x: Equal white stars, well split. 71% PRO, 390 AU WS, 1.4+1.4 Msol, it is likely binary and needs an orbit.
23h 51m 52.40s +37° 53' 28.4" P.A. 87.00 sep 5.9 mag 7.62,7.75 Sp F5V+A5 dist. 72.57 pc (236.72 l.y.)
STF3050 AB: 152; 200x: Near equal light yellow-white stars, split at 125x but better seen 200x. 63% PRO, 61 AU WS, 1.2+1.2 Msol, it is certainly binary. SOC grade 3 orbit, 573-year period.
23h 59m 29.33s +33° 43' 26.9" P.A. 343.00 sep 2.6 mag 6.46,6.72 Sp F8V dist. 28.93 pc (94.37 l.y.)
STF3058 AB: 152; 125x: Wide, 1 Dm. 4% PRO, 1,899 AU WS, 2.0+1.4 Msol, RVD 1.5 < EV 1.8, it is possibly binary and needs an orbit.
00h 05m 09.24s +30° 19' 44.5" P.A. 51.00 sep 12.6 mag 7.81,9.21 Sp F3V+F6V dist. 253.16 pc (825.81 l.y.)
STF3061 AB: 152; 125x: Near equal white stars, well split. -68% PRO, it is not binary.
00h 05m 44.45s +17° 50' 25.0" P.A. 149.00 sep 8.0 mag 8.40,8.51 Sp F5V+F5V dist. 128.04 pc (417.67 l.y.)
STN 3 AB: 152; 200x: Closely split, 1 Dm. 69% PRO, 102 AU WS, 1.2+1.0 Msol, it is likely binary and needs an orbit. O. Stone, Cincinatti observatory.
00h 52m 12.81s -22° 37' 02.1" P.A. 240.00 sep 2.0 mag 7.63,8.39 Sp F8V dist. 52.97 pc (172.79 l.y.)
STT 18 AB: 152; 200x: Beautiful, 2 Dm, closely split with 125x, better seen 200x. 68% PRO, 128 AU WS, 1.4+0.9 Msol, it is possibly binary and needs an orbit.
00h 42m 23.21s +04° 10' 00.0" P.A. 211.00 sep 2.1 mag 7.86,9.71 Sp F8V dist. 59.99 pc (195.69 l.y.)
STT 501 AB: 152; 200x: Bright white A, B appears with foveal coaxing, well split. -26% PRO, it is not binary.
23h 40m 02.82s +37° 39' 09.5" P.A. 162.00 sep 15.0 mag 6.54,10.57 Sp F2IV dist. 90.83 pc (296.29 l.y.)
STT 513 AB: 152; 250x: White A and 3 Dm B, well split. -34% PRO, it is not binary.
23h 58m 21.15s +35° 00' 46.8" P.A. 17.00 sep 3.7 mag 6.82,9.34 Sp A3 dist. 125.31 pc (408.76 l.y.)
WNO 1 AB: 152; 125x: 2 Dm, well split. -6% PRO, it is not binary.
00h 53m 12.46s -24° 46' 37.0" P.A. 7.00 sep 5.4 mag 6.60,9.20 Sp F6IV-V dist. 73.58 pc (240.02 l.y.)
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