Seeing was rather good throughout the day. I had an hour's observing with the 6-inch solar, with finely detailed sunspots in several groups, and many interesting prominences. I observed with the 20-inch at night, with seeing forecast to be excellent later in the night. It started out ok, but I masked down and went after some Struves before trying some challenge pairs. I've had some instability with the ServoCAT where it seems to lose its programming and slews in the wrong way. I revived an old computer which had the ServoCAT utility software and reloaded my settings. But late in the night the goto slew went in the wrong direction again, so I packed it in. There were high thin clouds out throughout the night, so it was no loss to pack it in. Before going inside I uncovered the 6-inch again and used the 60mm on the full moon. It was really amazing--very fine detail and the image was sharp and clear, and despite the haze all aournd the moon, in this scope the sky around the moon was pitch black. What fun, and I'm so glad I spent the extra half hour.
STF1744 AB: 178; 125x: Mizar. Bright, wide pair, white stars, very pleasing view with smaller aperture. 86% PRO, 359 AU WS, 2.8+2.0, likely binary needs an orbit.
13h 23m 55.42s +54° 55' 31.5" P.A. 153.00 sep 14.6 mag 2.23,3.88 Sp A1VpSrSi dist. 26.31 pc (85.82 l.y.)
STF1603 AB: 178; 125x: Light yellow-orange stars, near equal. -19% PRO, it is not likely to be binary.
12h 08m 07.07s +55° 27' 50.7" P.A. 83.00 sep 22.2 mag 7.82,8.26 Sp F8V+F9V dist. 49.07 pc (160.07 l.y.)
STF1630 AB: 178; 300x: Beautiful, faint close pair of light orange stars, half delta magnitude, close split with 150x, better seen at 300x. -5% PRO, it is not likely binary.
12h 18m 53.81s +56° 22' 06.0" P.A. 171.00 sep 2.5 mag 9.50,10.26 Sp G0 dist. 105.71 pc (344.83 l.y.)
STF1608 AB: 178; 125x: Near equal, light orange, wide. 84% PRO, 381 AU WS, 0.9+0.8 Msol, it is likely binary and needs an orbit.
12h 11m 27.76s +53° 25' 17.5" P.A. 220.50 sep 13.6 mag 8.11,8.27 Sp K0 dist. 30.15 pc (98.35 l.y.)
STF1600 AB: 178; 125x: Very light-yellow stars, noticeable delta magnitude, well split. -52% PRO, it is not binary.
12h 05m 34.42s +51° 55' 52.2" P.A. 92.00 sep 7.8 mag 7.63,8.28 Sp G8III dist. 369 pc (1203.68 l.y.)
STF1601 AB: 178; 200x: ! Very delicate, faint, blue-white A and light-orange B, 1 Dm, closely split, suspect with 125x, better seen with higher power to brighten the faint B star. 23% PRO, 162 AU WS, 1.0+0.8 Msol, so there is some chance it is binary and needs an orbit tried.
12h 06m 08.63s +38° 49' 42.4" P.A. 298.00 sep 2.0 mag 9.64,10.80 Sp G6IV dist. 113.77 pc (371.12 l.y.)
STF1594 AC: 178; 125x: 1 Dm, well split. -47% PRO, it is not binary.
12h 03m 28.56s +41° 24' 15.5" P.A. 142.00 sep 11.0 mag 10.09,11.10 dist. 129.53 pc (422.53 l.y.)
STF1589 AB: 178; 200x: Excellent close pair, noticeable delta, closely split, white. Split with 125x, better seen with 200x. -61% PRO, it is not binary.
12h 00m 36.34s +43° 37' 19.1" P.A. 159.00 sep 2.2 mag 10.19,10.40 Sp F8
STF1592 AB: 178; 125x: Wide, faint B seen with averted vision only. -43% PRO, it is not binary.
12h 02m 21.01s +35° 37' 41.2" P.A. 275.00 sep 25.6 mag 10.99,11.30 Sp F8
STF1770 AB: 178; 200x: Very pretty orange A and light blue B, >1 Dm, close but nicely split, split with 125x but better seen with 200x. -60% PRO, it is not binary.
13h 37m 42.92s +50° 42' 53.5" P.A. 123.00 sep 1.7 mag 6.93,8.18 Sp K3III: dist. 434.78 pc (1418.25 l.y.)
STF1662 AB: 178; 200x: Light yellow-orange A, wide 2 Dm B. -49% PRO, it is not binary.
12h 35m 48.64s +56° 34' 42.4" P.A. 243.00 sep 19.3 mag 7.83,9.75 Sp K0III dist. 167.22 pc (545.47 l.y.)
STF1660 AB: 178; 125x: Unremarkable wide pair, nearly 1 Dm. 64% PRO, 3,863 AU WS, 1.4+1.1 Msol, and the RVD 1.1 is equal to the ES 1.1. Might be binary, needs an orbit.
12h 34m 58.71s +58° 14' 16.3" P.A. 118.00 sep 19.7 mag 9.87,11.12 Sp F2 dist. 114.42 pc (373.24 l.y.)
STF1667 AB: 178; 300x: Very fine, half delta magnitude. -52% PRO, it is not binary.
12h 39m 36.41s +64° 40' 27.2" P.A. 40.00 sep 1.2 mag 9.49,9.99 Sp F5 dist. 273.22 pc (891.24 l.y.)
STF1831 AB: 178; 125x: AC is wide bright near equal, -95% PRO and not binary. AB is a 3 Dm close companion around 6" but -65% PRO, not binary. Seven pairings in the system but none are binary.
14h 16m 08.47s +56° 42' 45.7" P.A. 138.00 sep 5.8 mag 7.16,9.56 Sp A7IV dist. 156.01 pc (508.9 l.y.)
STF1830 CE: 178; 125x: 2 Dm very wide, not binary, -95% PRO.
14h 15m 59.89s +56° 41' 20.8" P.A. 245.00 sep 138.2 mag 6.73,9.33 Sp F8V dist. 48.31 pc (157.59 l.y.)
STF1800 AB-C: 178; 125x: Easy wide 2 Dm pair. No parallax data for the primary.
14h 02m 00.60s +57° 13' 28.6" P.A. 20.00 sep 28.4 mag 7.76,10.42 Sp F5 dist. 146.63 pc (478.31 l.y.)
A1097 AB: 508; 800x: Clean split, nearly one delta. No parallax data for the primary.
14h 02m 00.60s +57° 13' 28.6" P.A. 260.50 sep 0.4 mag 9.09,8.24 Sp F5 dist. 146.63 pc (478.31 l.y.)
STT 269 AB: 508; 800x: Can only see as single, all powers. 53.2-year period grade 2, it is coming off apastron and will close to periastron in 2040, not visible again until the 2050s-60s. No Gaia parallax data for either star.
13h 32m 51.02s +34° 54' 25.8" P.A. 228.20 sep 0.3 mag 7.27,8.08 Sp A6III dist. 147.93 pc (482.55 l.y.)
HU 644 AB: 508; 300x: Faint pair, significant delta magnitude, white, well split, it is very close to us at 10.71 parsecs. No Gaia parallax data for either star. SOC grade 2 orbit, 48.776-year period, it will make a quarter turn to the west by 2030 then be due south by 2045. Somehow my PA is reversed from the published data.
13h 19m 45.58s +47° 46' 41.1" P.A. 280.40 sep 0.5 mag 9.11,9.87 Sp M2V dist. 10.71 pc (34.94 l.y.)
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