Disappointed by uneven seeing, but really a nice night out. I masked the 20-inch down to 7-inches, and observed some Struves and likely phycical pairs according the the Cambridge Double Star Atlas. Some really nice views, though I had to hunt around for the best seeing. I had roof currents from my own and my backyard neighbor's house. The best seeing seemed to be just west of the meridian tree -- just out of the roof currents. It's dark late in summer, which reduces the time available to observe.
STF2011 AB: 178; 140x: Close pair, B barely seen even with averted vision, 2 Dm. 31% PRO, 600 AU WS, 2.4+1.5 Msol, RVD 1.6 < EV 3.4, it is very likely binary and needs an orbit.
16h 07m 38.27s +28° 59' 43.6" P.A. 67.00 sep 2.7 mag 7.93,10.23 Sp A8IV dist. 307.69 pc (1003.68 l.y.)
STF2079 AB 178; 140x: Wide, slight delta magnitude, light orange stars.
16h 39m 36.33s +23° 00' 06.1" P.A. 91.00 sep 16.7 mag 7.56,8.13 Sp F0 dist. 414.94 pc (1353.53 l.y.)
16396+2300 STF 2079
STF2085 AB: 178; 140x: 1 Dm, well split. 27% PRO, 1,029 AU WS, 2.3+1.5 Msol, it is possibly binary and needs an orbit.
16h 42m 26.09s +21° 35' 34.3" P.A. 310.00 sep 6.1 mag 7.38,9.17 Sp A0IV dist. 190.48 pc (621.35 l.y.)
STT 261 AB: 178; 140x: Lovely cream white, near equal pair, nicely split. SOC grade 4 orbit, 772-year period. 69% PRO, 183 AU WS, 1.5+1.5 Msol, it is certainly binary.
13h 12m 02.02s +32° 05' 07.9" P.A. 337.00 sep 2.5 mag 7.40,7.64 Sp F6V dist. 72.52 pc (236.56 l.y.)
STF1769 AB: 178; 280x: Very fine, part of a wide equal pair, AB is a very closely split 3 Dm pair. B sits on A's diffraction ring. SOC grade 5 orbit, 2616-year period. -39% PRO, it is not binary.
13h 38m 01.95s +39° 10' 41.0" P.A. 45.00 sep 1.6 mag 7.91,10.42 Sp G5 dist. 46 pc (150.05 l.y.)
12h 16m 42.19s +39° 35' 34.5" P.A. 153.00 sep 5.9 mag 7.28,10.17 Sp A2.5V dist. 108.81 pc (354.94 l.y.)
STF1632 AB: 178; 140x: Light orange A and wide, 2 Dm B. 11% PRO, 1,601 AU WS, 2.7+1.2 Msol, but RVD 3.9 > EV 2.1, it is not binary.
12h 20m 13.50s +37° 54' 07.7" P.A. 192.00 sep 10.1 mag 6.83,9.98 Sp K0III+F9V dist. 165.29 pc (539.18 l.y.)
S 654 AB: 178; 140x: Super-wide, 2 Dm companion. 66% PRO, 6,545 AU WS, 2.8+1.2 Msol, but RVD 3.9 > EV 1.0, it is not binary.
13h 46m 59.77s +38° 32' 33.7" P.A. 239.00 sep 71.3 mag 5.62,8.91 Sp K0III+F8V dist. 97.18 pc (317 l.y.)
STTA123 AB: 178; 140x: Very wide, half delta magnitude pair, wide BC can be seen averted vision, then hold. 14% PRO, 4,762 AU WS, 1.8+1.6 Msol, RVD 0.4 < EV 1.1, it is likely binary and needs an orbit.
13h 27m 04.70s +64° 44' 07.6" P.A. 148.00 sep 69.7 mag 6.65,7.03 Sp F0+F0 dist. 71.58 pc (233.49 l.y.)
STF1864 AB: 178; 140x: Sharp white-yellow stars, half delta magnitude, wide. 18% PRO, 539 AU WS, 3.1+2.5 Msol, RVD 0.6 < EV 4.3, it is likely binary and needs an orbit.
14h 40m 43.56s +16° 25' 05.9" P.A. 114.00 sep 5.4 mag 4.88,5.79 Sp B9pMnHg dist. 93.72 pc (305.71 l.y.)
STT 288 AB: 178; 280x: Split with seeing, 1 Dm. SOC grade 4 orbit, 313-year period. No Gaia data for the secondary.
14h 53m 23.35s +15° 42' 18.3" P.A. 154.00 sep 1.0 mag 6.89,7.55 Sp F9V dist. 47.64 pc (155.4 l.y.)
15h 16m 25.62s +16° 47' 39.4" P.A. 290.00 sep 5.5 mag 7.75,11.45 Sp G0 dist. 41.91 pc (136.71 l.y.)
SHJ 202 AB: 178; 140x: Super-wide, half delta magnitude. No Gaia data for the primary.
15h 28m 09.61s -09° 20' 53.1" P.A. 132.00 sep 52.0 mag 6.95,7.61 Sp K1V+K2 dist. 20.58 pc (67.13 l.y.)
EIS 1 AB: 178; 140x: Light orange A, faint wide B seen with averted vision only. WDS notes: V382 Ser = GJ 3917. Eisenbeiss et al. (2007) use archival data from POSS-I (1950) and UK Schmidt red and IR (1981, 1992), plus 2MASS, as well as follow-up H-band observation with the Omega-Cass IR camera at the 3.5m Calar Alto telescope; derive pm of secondary similar to that of primary. The orbital period is estimated at 7000y. Low-resolution optical spectroscopy yields spectral type M2.5-3.5V for the secondary; the derived distance is 24.4 +/- 4.2 pc." -36% PRO, it's not binary!
15h 48m 09.46s +01° 34' 18.2" P.A. 352.00 sep 17.7 mag 7.53,11.90 Sp G8V dist. 21.29 pc (69.45 l.y.)
SKF 1311 AB: 178; 140x: Omega Ser. Light yellow orange A, wide faint B. -18% PRO, it is not binary.
15h 50m 17.55s +02° 11' 47.5" P.A. 300.00 sep 74.8 mag 5.33,10.34 Sp G8III+K0 dist. 83.82 pc (273.42 l.y.)
STT 303 AB: 178; 200x: Gorgeous white pair, slight delta magnitude, split 140x, better seen 200x, very pretty. SOC grade 4 orbit, 1114-year period. 66% PRO, 128 AU WS, 1.6+1.4 Msol, it is binary.
16h 00m 54.16s +13° 16' 18.2" P.A. 175.00 sep 1.6 mag 7.69,8.06 Sp F7V dist. 97.28 pc (317.33 l.y.)
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