I've been observing very infrequently, making small progress on rebuilding the shed and refitting the 20-inch. Nights are slowly getting longer but we frequently have fog rolling in early, and generally average seeing and poor transparency. So far I've completed the shed and reassembled the 20-inch and built removable wheels and handles so I can easily move the scope fully assembled into and out of the shed. I need to finish rewiring the ServoCat and expect to receive a new eFinder in a few weeks. So, considerable progress. I've continued using DSP for my logs as ST3 continues to give me problems. Here are some additional observations made over the month of August.
STF 2078 AB: 178; 140x: Bright pair, light white A and light blue B, 1 Dm, well split, forms triple with nearby bright white star. -29% PRO, it is not binary.
16h 36m 13.72s +52° 55' 27.8" P.A. 104.00 sep 3.0 mag 5.38,6.42 Sp B9.5V dist. 126.42 pc (412.38 l.y.)
STF 2092 AB: 178; 140x: Well separated, 1 Dm. 6% PRO, 1271 AU WS, 1.7+1.3 Msol, there is some chance it is binary, and orbit can be tried.
16h 39m 03.98s +60° 41' 58.8" P.A. 5.00 sep 8.2 mag 8.69,9.64 Sp G1IV dist. 118.34 pc (386.03 l.y.)
STF 2099 AB: 178; 200x Near the roof line, so a lot of turbulence. Very faint wide B seen with averted vision only. -53% PRO, it is not binary.
16h 38m 21.31s +70° 20' 18.4" P.A. 215.00 sep 9.8 mag 9.45,10.90 Sp K0
STF 2117 AB: 178; 280x: Can hold faint B with foveal coaxing, well split at high power. -47% PRO it is not binary.
16h 58m 06.11s +51° 47' 40.2" P.A. 91.00 sep 1.4 mag 9.17,10.61 Sp G5
STF 2118 AB: 178; 200x: Nice clean close split, near equal, white. 43% PRO, 76 AU WS, 1.6+1.5 Msol, it is likely binary. SOC grade 3 orbit, 321-year period, it is starting to close from apastron.
16h 56m 25.32s +65° 02' 20.6" P.A. 65.00 sep 0.9 mag 7.07,7.30 Sp F2IV dist. 69.93 pc (228.11 l.y.)
STF 2130 AB: 178x; 200x: Split low through high powers. Well seen at 140x, light yellow-white pair, near equal good split, nice colors and diffraction rings at high powers. 63% PRO, 63 AU WS, 1.4+1.4 Msol, it is likely binary (a negative PMV but this is because the secondary is moving backwards to the general PM -- which is why I don't like PM as a determination of binarity). SOC grade 3 orbit, 424-year period, it will hang to the N for a couple more decades.
17h 05m 20.20s +54° 28' 14.3" P.A. 356.00 sep 2.6 mag 5.66,5.69 Sp F7V dist. 27.43 pc (89.48 l.y.)
17h 13m 06.26s +54° 08' 20.9" P.A. 224.00 sep 2.5 mag 8.71,10.56 Sp ms ms dist. 108.81 pc (354.94 l.y.)
STF 2300 AB: 178; 140x: White A and faint, well separated B. Fainter D, held with foveal coaxing, makes a triangle with this pair. -94% PRO, it is not binary.
18h 09m 18.77s +59° 45' 02.9" P.A. 51.00 sep 12.1 mag 9.24,11.12 Sp A2
STF 2309 AB: 178; 140x: B flashes much brighter, like beacon, with averted vision. Wide, slightly unequal. 41% PRO, 1178 AU WS, 2.1+1.8 Msol, RVD 0.5 < EV 2.4, 0.08 PMV -- it is possibly binary and needs an orbit (despite Stelle Doppie saying it's not physical).
18h 20m 06.84s +25° 31' 53.0" P.A. 352.00 sep 3.4 mag 9.31,9.95 Sp A0 dist. 180.51 pc (588.82 l.y.)
STF 2311 AB: 178; 140x: Very fine unequal faint pair, at the tip of a triangle similar magnitude stars. -68% PRO, it is not binary.
18h 22m 14.28s +11° 26' 00.7" P.A. 84.00 sep 3.0 mag 9.65,10.79 Sp K5 dist. 243.31 pc (793.68 l.y.)
STF 2314 AB: 178; 140x: Faint, well separated. 83% PRO, 199 AU WS, 1.1+0.8 Msol, it is possibly binary and needs an orbit.
18h 23m 25.75s +23° 27' 19.1" P.A. 331.00 sep 2.7 mag 9.02,10.31 Sp G5 dist. 76.45 pc (249.38 l.y.)
STF 2320 AB: 178; 420x: Surprisingly difficult, B is quite faint, blue, and on the inside edge of A's diffraction ring, 420x-500x, needed higher magnification to separated. 58% PRO, 334 AU WS, 3.2+2.1 Msol, it is possibly binary and needs an orbit.
18h 27m 45.89s +24° 41' 50.8" P.A. 358.00 sep 1.0 mag 7.14,8.90 Sp B9V dist. 256.41 pc (836.41 l.y.)
STF 2323 AB: 178; 200x: Bright white A and light blue-white and much fainter B, good separation with 140x, nicely seen with 200x. 30% PRO, 220 AU WS, 2.3+1.2 Msol, it is likely binary. SOC grade 4 orbit, 2455-year period.
18h 23m 54.65s +58° 48' 02.1" P.A. 347.00 sep 3.7 mag 5.06,8.07 Sp A1V dist. 56.47 pc (184.21 l.y.)
STF 2333 AB: 178; 140x: Near equal light orange stars, well split. -12% PRO, it is not binary.
18h 31m 06.94s +32° 14' 43.4" P.A. 333.00 sep 6.3 mag 7.82,8.57 Sp B9IV dist. 216.92 pc (707.59 l.y.)
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