Very good seeing last night, but with high wispy clouds and haze. I hoped to use my 20-inch, after tearing it down to replace the faulty azimuth encoder. Everything seemed fine but my ServoCAT controller would not boot up. I switched to battery power, in case it was the powered ground board, and still same problem. Fortunately, I found another Gen 2 controller and will swap it out next week. All this old equipment, I need to keep spares!
So, I used the 6-inch instead. I'm glad I have that option, ready to go! I had my typical, very enjoyable night looking at doubles from the Cambridge Double Star Atlas -- which are supposed to be "physical" but a good 60-70% of the time turn out not to be after examining the parallax data. The Nexus is working properly with an external battery, so I had no difficulties. It was cold, but luckily not much dew, though I did have the heater on. I observed from around 9:30pm-midnight. Ended the night with views of the moon, which was very high up in the sky, in the good seeing pocket, and I appreciated all the details! Then bright Jupiter too, which looked very large and detailed even though it was only a few degrees above the roofline.
It will be rainy the next week, so I will mostly be working on telescope projects.
BU 10 AB: 152; 250x: Very faint, fleeting well split B seen only with averted vision, can briefly hold with foveal coaxing but it fades quickly. 54% PRO, 495 AU WS, 2.4+1.2 Msol, it is possibly binary and needs an orbit.
02h 50m 21.46s -04° 59' 11.1" P.A. 100.00 sep 2.9 mag 7.20,10.44 Sp A0 dist. 134.59 pc (439.03 l.y.)
BU 306 AB: 152; 200x: Very subtle faint B beyond white A's diffraction, seen 200-250x. -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 879 AB: 152; 125x: Very faint, wide B. -50% PRO, it is not binary.
03h 28m 36.34s +11° 23' 26.2" P.A. 71.00 sep 24.5 mag 6.50,12.30 Sp G9III dist. 118.2 pc (385.57 l.y.)
H 5 12 AB: 152; 125x: Super-wide 2 Dm. 79% PRO, 1,509 AU WS, 2.1+1.2 Msol, but RVD 2.2 > EV 2.0, and only 0.05 PMV, it is not likely binary.
01h 57m 55.71s +23° 35' 45.8" P.A. 48.00 sep 37.3 mag 4.80,6.65 Sp F0IV+F7V dist. 39.49 pc (128.82 l.y.)
H 6 69 AB: 152; 125x: Super-wide. 3 Dm. No Gaia parallax data.
02h 09m 25.29s +25° 56' 23.9" P.A. 35.00 sep 93.1 mag 4.99,8.01 Sp F2III dist. 88.5 pc (288.69 l.y.)
HJ 1123 AB: 152; 125x: In the middle of a gorgeous widely dispersed open cluster M34, two near equal wide stars. M34 has bright, medium, and faint staticky stars in the background. Well seen in the 60mm too. 45% PRO, but 9,691 AU WS, 3.0+3.0 Msol, 0.1 RVD < EV 1.0, PMV 0.09, it is too far apart to be binary.
02h 41m 58.44s +42° 47' 30.6" P.A. 249.00 sep 21.1 mag 8.39,8.46 Sp B8III
JC 1 AB: 152; 125x: Bright light orange star with several very faint widely separated points of stars scattered around it. 85% PRO, 545 AU WS, 5.1+1.0 Msol, it's possible to be binary.
03h 19m 30.97s -21° 45' 28.3" P.A. 290.00 sep 5.8 mag 3.91,9.50 Sp M3III dist. 93.37 pc (304.57 l.y.)
STF 162 AB: 152; 250x: White stars, half delta magnitude, closely split, seen with 125x, best 250x, with a fainter wider third, similar PA. -43% PRO it is not binary.
01h 49m 15.47s +47° 53' 47.1" P.A. 197.00 sep 2.0 mag 6.47,7.22 Sp A3V dist. 127.55 pc (416.07 l.y.)
STF 194 AB: 152; 250x: Excellent, very close split, near equal. 49% PRO, 334 AU WS, 2.6+2.4 Msol, it is possible to be binary.
01h 59m 18.95s +24° 49' 44.6" P.A. 279.00 sep 1.3 mag 7.62,9.46 Sp A3 dist. 193.42 pc (630.94 l.y.)
STF 208 AB: 152; 250x: Excellent close pair, 1 Dm, nicely split, seen 125x, best 250x. No Gaia data for the secondary. SOC grade 3 orbit, 325-year period.
02h 03m 39.26s +25° 56' 07.6" P.A. 347.00 sep 1.5 mag 5.82,7.87 Sp F8IV dist. 48.71 pc (158.89 l.y.)
STF 230 AB: 152; 125x: Wide, 1 Dm, light yellow A. 35% PRO, but 15,406 AU WS, it is not binary.
02h 14m 57.07s +58° 29' 26.0" P.A. 259.00 sep 23.8 mag 7.87,9.37 Sp B8III
STF 240 AB: 152; 125x: Slightly unequal, well split. 56% PRO, 645 AU WS, 1.7+1.6 Msol, low 0.08 PMV. It is possibly binary, an orbit can be tried.
02h 17m 15.74s +23° 52' 24.8" P.A. 52.00 sep 4.8 mag 8.32,8.60 Sp F0 dist. 111.86 pc (364.89 l.y.)
STF 268 AB: 152; 250x: White A, blue-green B, well split with high power, 2 Dm. -39% PRO, it is not binary.
02h 29m 24.96s +55° 32' 10.5" P.A. 131.00 sep 2.9 mag 6.72,8.50 Sp A2pShell dist. 162.87 pc (531.28 l.y.)
STF 270 AB: 152; 125x: Wide 1 Dm. -11% PRO, it is not binary.
02h 30m 50.65s +55° 32' 54.2" P.A. 305.00 sep 21.3 mag 7.00,9.66 Sp F4V dist. 54.7 pc (178.43 l.y.)
STF 272 AB: 152; 200x: Near equal, close split with 125x, better seen 200x. Only 4% PRO, 368 AU WS, 1.9+2.0 Msol, low PMV 0.08, it is possibly binary.
02h 33m 08.71s +58° 27' 44.9" P.A. 216.00 sep 1.9 mag 8.33,8.36 Sp A3V dist. 129.53 pc (422.53 l.y.)
STF 280 AB: 152; 125x: Equal, well split. 31% PRO, 791 AU WS, 2.5+2.4 Msol, and RVD 0.1 < EV 3.3, low 0.09 PMV. It is possibly binary.
02h 34m 07.50s -05° 38' 07.6" P.A. 346.00 sep 3.6 mag 7.98,7.97 Sp K1III dist. 177.94 pc (580.44 l.y.)
STF 281 AB: 152; 125x: Very faint, well split B. -7% PRO, it is not binary.
02h 35m 52.49s +05° 35' 35.9" P.A. 80.00 sep 8.1 mag 4.97,9.08 Sp G3III dist. 104.28 pc (340.16 l.y.)
STF 287 AB: 152; 125x: Nearly 2 Dm, fairly close pair. -71% PRO, it is not binary.
02h 38m 59.78s +14° 51' 37.6" P.A. 74.00 sep 6.8 mag 7.36,9.61 Sp G5 dist. 271 pc (884 l.y.)
STF 289 AB: 152; 125x: Ivory A and wide, much fainter B. 69% PRO, 2,279 AU WS, 2.5+1.0 Msol, but RVD 3.5 > EV 1.7, it is not binary.
02h 40m 41.03s +27° 03' 39.6" P.A. 1.00 sep 28.3 mag 5.30,9.56 Sp A3V dist. 70.97 pc (231.5 l.y.)
STF 291 AB: 152; 125x: White unequal close pair, with a wide, faint +1. 41% PRO, 929 AU WS, 2.8+2.5 Msol, low PMV 0.08, but it has a chance of being binary.
02h 41m 06.59s +18° 48' 00.7" P.A. 118.00 sep 3.4 mag 7.66,7.50 Sp B9.5V dist. 735.29 pc (2398.52 l.y.)
STF 292 AB: 152; 125x: Wide unequal. -13% PRO, it is not binary.
02h 42m 29.48s +40° 15' 40.5" P.A. 212.00 sep 23.5 mag 7.56,8.23 Sp B9 dist. 353.36 pc (1152.66 l.y.)
STF 295 AB: 152; 250x: Well split faint B. -49% PRO, it is not binary in spite of the SOC grade 5 orbit.
02h 41m 14.00s -00° 41' 44.4" P.A. 301.00 sep 3.9 mag 5.82,9.68 Sp F6V dist. 22.59 pc (73.69 l.y.)
STF 296 AB: 152; 125x: Faint B easily held direct vision, wide from bright A. Only 3% PRO, 228 AU WS, 1.3+0.4 Msol, negative PMV -0.03, it is not binary in spite of the SOC grade 5 orbit.
02h 44m 11.99s +49° 13' 42.4" P.A. 305.00 sep 21.2 mag 4.16,9.10 Sp F7V+M1.5 dist. 11.13 pc (36.31 l.y.)
STF 299 AB: 152; 250x: Very pretty diamond ring, 2 Dm B on outside edge of bright A's diffraction. No Gaia data for the secondary. SOC grade 4 orbit, 914-year period.
02h 43m 18.04s +03° 14' 08.9" P.A. 299.00 sep 1.9 mag 3.54,6.18 Sp A2V+F4V dist. 24.41 pc (79.63 l.y.)
STF 300 AB: 152; 125x: Beautiful close equal light orange pair. 72% PRO, 300 AU WS, 1.6+1.5 Msol, low 0.06 PMV, it might be binary.
02h 44m 36.85s +29° 27' 36.6" P.A. 316.00 sep 3.1 mag 7.89,8.08 Sp F0IV dist. 92 pc (300.1 l.y.)
STF 305 AB: 152; 125x: 1 Dm, close split, white. 4% PRO, 121 AU WS, 0.9+1.1 Msol, low 0.07 PMV, it probably is not binary, though there is a SOC grade 4 orbit, 531-year period.
02h 47m 27.35s +19° 22' 20.0" P.A. 307.00 sep 3.6 mag 7.52,8.25 Sp G0V dist. 33.56 pc (109.47 l.y.)
STF 311 AB: 152; 250x: White and 2 Dm close B, seen at 125x but better at 250x, a fainter wide +1 with a similar PA. No Gaia parallax data for the primary.
02h 49m 17.55s +17° 27' 51.5" P.A. 118.00 sep 3.3 mag 5.32,7.95 Sp B6V dist. 239.23 pc (780.37 l.y.)
STF 323 AB: 152; 125x: Near equal white, nice close split. 43% PRO, 654 AU WS, 2.4+2.3 Msol, 0.08 PMV, it might be binary.
02h 52m 39.65s +06° 28' 29.3" P.A. 278.00 sep 2.7 mag 7.81,7.92 Sp B9 dist. 196.08 pc (639.61 l.y.)
STFA 5 AB: 152; 125x: Brilliant white unequal wide. -60% PRO, it is not binary.
02h 37m 00.52s +24° 38' 50.0" P.A. 275.00 sep 37.9 mag 6.50,7.02 Sp F5V+F7V dist. 41.75 pc (136.19 l.y.)
STI1797 AB: 152; 250x: Excellent close pair, > 3Dm B seen with averted vision only. -94% PRO, it is not binary.
02h 10m 24.05s +56° 17' 49.6" P.A. 142.00 sep 8.6 mag 7.53,11.85 Sp K2III dist. 117.23 pc (382.4 l.y.)
STTA 27 AB: 152; 125x: Super-wide. 9% PRO but 9,672 AU WS, it is not binary.
02h 26m 45.64s +10° 33' 55.0" P.A. 31.00 sep 73.8 mag 6.72,8.31 Sp A3 dist. 127.71 pc (416.59 l.y.)
STTA 30 AB: 152; 125x: Super-wide 2 Dm. 31% PRO, but 14,705 AU WS, and RVD 1.6 > EV 0.7, it is not binary.
02h 38m 59.54s +08° 55' 11.8" P.A. 214.00 sep 68.6 mag 7.68,9.57 Sp A0 dist. 282.49 pc (921.48 l.y.)
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