Seeing was pretty good last night, good enough to chase after some movement pairs. A lot of extremely close ones which are not quite resolved. There's a large heat dome over our area, so the good seeing will continue the next couple of days. The solar viewing has been quite good -- I've been able to use full 6-inch aperture with my Ha set-up, and the views are outstanding.
A 95 AB: 508; 1000x: Light orange stars, in moments of best seeing there is a hairline split, notched elongation otherwise. Unequal, PA to SW. SOC grade 2 orbit, 108.72-year period, it will close rapidly over the next decade. Seems I observed it just in time...
19h 11m 01.26s -07° 25' 38.7" P.A. 20.00 sep 0.2 mag 7.40,7.95 Sp F8V dist. 173.61 pc (566.32 l.y.)
A 1658 AN: 508; 1270x: Out-of-round olive, weaker side to NE. SOC grade 2 orbit, 88.1-year period, it has a nearly circular orbit and will be at 0.24" in the mid-2030s, should be resolvable then.
19h 48m 39.64s +15° 03' 32.4" P.A. 54.00 sep 0.2 mag 8.30,8.74 Sp F5V dist. 136.61 pc (445.62 l.y.)
HO 276 AB: 508; 850x: Light yellow star with a slight bump to the SW. No orbit diagram or ephemeris provided in SOC, nor in the source paper...
19h 59m 47.49s -09° 57' 26.2" P.A. 109.00 sep 0.2 mag 6.22,7.83 Sp F8V dist. 22.2 pc (72.42 l.y.)
KUI 93 AB: 508; 850x: Brilliant white, elongated N-S but can't tell which is weaker. SOC grade 3 orbit, 65-year period, it will widen (but too slowly for me to resolve it) to periastron in 2050 at 0.179"
19h 41m 05.53s +13° 48' 56.5" P.A. 317.00 sep 0.1 mag 6.69,6.75 Sp B5V+A8IV dist. 2040.82 pc (6657.15 l.y.)
STF2534 AB: 178; 140x: Equal white stars, well separated. -36% PRO, they are not binary.
19h 27m 40.63s +36° 31' 44.4" P.A. 63.00 sep 7.0 mag 8.21,8.39 Sp B9III dist. 900.9 pc (2938.74 l.y.)
STT 373 AB: 178; 200x: Very fine, 2 Dm, close separation. 85% PRO, 490 AU WS, 2.7+1.6 Msol, it is very likely binary and needs an orbit.
19h 24m 05.52s +46° 26' 18.3" P.A. 232.00 sep 1.8 mag 7.63,9.93 Sp B9.5II dist. 277.01 pc (903.61 l.y.)
STT 383 AB: 178; 420x: Exceptionally fine, 1 Dm white and blue, just split, B sits within A's first diffraction ring, needed higher power to push the two apart. SOC grade 4 orbit, 1125-year period, 51% PRO, 171 AU WS, 2.7+2.1 Msol, it is binary.
19h 42m 56.26s +40° 43' 18.3" P.A. 15.00 sep 0.8 mag 7.03,8.28 Sp B9.5V dist. 154.56 pc (504.17 l.y.)
STT 432 AB: 178; 200x: Slightly unequal white stars, just split at 140x, better seen 200x. -71% PRO, it is not binary.
21h 14m 18.94s +41° 08' 48.0" P.A. 115.00 sep 1.3 mag 7.78,8.05 Sp F8V dist. 244.5 pc (797.56 l.y.)
STT 434 AB: 178; 140x: Brighter white, 2 Dm, wide. No Gaia parallax data for the secondary.
21h 19m 00.03s +39° 44' 57.6" P.A. 122.00 sep 24.4 mag 6.67,9.93 Sp B9V dist. 143.88 pc (469.34 l.y.)
STT 365 AB; 508; 1270x: Light yellow stars, overlapping disks, slightly unequal, PA is N. No SOC orbit.
18h 55m 57.14s +44° 13' 41.9" P.A. 359.00 sep 0.2 mag 7.20,8.30 Sp A2 dist. 186.57 pc (608.59 l.y.)
WCK 2 Aa-Ab: 508; 1270x: Olive, weak side PA SW, all powers, blue filter. SOC grade 2 orbit, 17-year period, it is near apastron now in its slightly elliptical orbit and will widen by a hundredth of an arcsecond in 2026. Also saw BU 298 AB, 3.86/13.40, 35.5", as the very faint and small B widely separated with the high magnification.
20h 39m 38.25s +15° 54' 43.4" P.A. 289.00 sep 0.1 mag 3.86,6.43 Sp B9IV dist. 77.82 pc (253.85 l.y.)
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