As planned I started around 10pm and pointed south, in Virgo. Then shortly after 11pm I pointed north, to Cvn and Ursa Major. Afterwards I kept on the meridian line and worked across Boötes and then crossed over into Draco.
I tired out a little earlier than the night before, and closed the observatory at 1am. I had my 6-inch f/5 refractor set-up, and did some Milky Way sweeping, trying to find various Messiers (M57 was seen and rather bright with averted vision; M13, M92, M24, M11. Had a very photographic view of Albireo. I'm really glad I bought the Droptix, it helps with low power views a lot. My mount is unusable, I'm afraid -- too rough and choppy. I am searching for a replacement.
STF 1711 AB: 508; 667x: Hairline split at 533x, easy split at 667x. Light orange stars, noticeable magnitude difference. Struve discovered at 1.4"
13H 02M 51.05S +13° 28' 24.2" P.A. 329.8 SEP 0.32 MAG 9.27,9.36 SP F5 DIST. 79.55 PC (259.49 L.Y.)
STF 1712 AB: 508; 333x: white stars, wide, near equal
13H 03M 32.39S +09° 28' 08.0" P.A. 332 SEP 9.1 MAG 10.24,10.57 SP G0+G0 DIST. 97.37 PC (317.62 L.Y.)
STF 1716 AB: 508; 333x: A is a bright light yellow, B is a richer yellow, but two delta mag, wide, ~4"
13H 04M 30.74S +08° 39' 11.5" P.A. 150 SEP 2.9 MAG 8.32,10.53 SP F0 DIST. 174.52 PC (569.28 L.Y.)
J 2103 AB: 508; 333x: Easy, fairly wide yellowish stars, B a little more yellow, ~1 delta mag
13H 05M 00.78S +13° 04' 09.7" P.A. 200 SEP 3.2 MAG 10.60,10.90 SP F8
HU 1143 AB: 508; 333x: Very nice pair, ~1 delta mag, close ~1" separation, slightly yellow stars.
13H 06M 24.89S +11° 55' 39.7" P.A. 94 SEP 1.1 MAG 11.06,11.21 SP F5
STF 1670 AB: 508; 333x: Short Period. Porrima. Blazing white stars, easy. I noted their orientation in a sketch. It will continue to widen.
11H 44M 04.12S -04° 48' 25.8" P.A. 191.8 SEP 0.21 MAG 8.90,8.90 SP F4V DIST. 135.69 PC (442.62 L.Y.)
14 18 58.2664803479 -06 36 12.972559818
HU 644 AB: 508; 667x: !! Beautiful! Orange star with faintest bluish dot on the inside of first diffraction, hairline at best moments. One of the most beautiful I've seen.
13H 19M 45.58S +47° 46' 41.1" P.A. 325.8 SEP
The orbital plot is incorrect; the current separation is 0.318"
A 1609 AB: 508; 1067x, ap mask: Notched at best moments, white stars, none other in view. This one will narrow and flip orientation over the next 10 years, so it will be difficult to tell A from B then. When 90 degrees from now it will be 0.15"
13H 25M 48.12S +44° 29' 38.3" P.A. 76 SEP 0.29 MAG 9.49,8.79 SP K0 DIST. 52.66 PC (171.78 L.Y.)
STT 269 AB: 508; 667x: Overlapping disks. ~1 delta mag. Barely hairline at best moments.
13H 32M 51.02S +34° 54' 25.8" P.A. 227.1 SEP 0.3 MAG 7.27,8.08 SP A6III DIST. 147.93 PC (482.55 L.Y.)
STF 1909 AB: 508; 667x: 44 Boo. Notched elongation, light orange stars. 533x cleaner disks than 667x and I can still see the notches and the elongation orientation, and three other stars in the field for me to record their positions.
15H 03M 47.30S +47° 39' 14.6" P.A. 90.7 SEP 0.39 MAG 5.20,6.10 SP F7V+K4V DIST. 12.51 PC (40.81 L.Y.)
ES 964 AB: 508; 333x: Near equal white, wide ~6"
15H 38M 26.39S +52° 34' 18.2" P.A. 219 SEP 5.3 MAG 10.57,10.80 SP K2
TDS9574 AB: 508; 667x: Near a bright star. Tough one, focus not quite good enough to tighten the haze which clearly is two stars, <1" separation
15H 38M 51.43S +50° 27' 15.9" P.A. 176 SEP 0.8 MAG 11.57,11.81
TDS9608 AB: 508; 333x: ! Extremely fine, I can get it at 333x with direct vision, B appears with seeing as a small point less than 1", ~1 delta mag.
15H 44M 10.54S +52° 12' 33.2" P.A. 84 SEP 0.7 MAG 10.78,11.25
HU 657 AB: 508; 333x: !! So good. With precise focus and steady seeing two near equal stars split, steady.
15H 45M 40.74S +50° 40' 20.8" P.A. 175.1 SEP 0.52 MAG 10.25,10.95 SP K0 DIST. 141.44 PC (461.38 L.Y.)
COU 2388 AB: 508; 1067x: !! Notched at 667x, barely hairline at 1067x with seeing
15H 46M 28.21S +50° 47' 59.8" P.A. 219 SEP 0.2 MAG 9.61,9.72 SP K0 DIST. 60.42 PC (197.09 L.Y.)
HU 152 AB: 508; 333x: Sweet pair, ~3 delta mag, a well separated 3". B slightly blue, A very white. nice pair.
15H 46M 57.24S +51° 58' 46.7" P.A. 244 SEP 3.9 MAG 8.46,11.31 SP F8 DIST. 113.12 PC (369 L.Y.)
ES 742 AB: 508; 333x: Near equal white stars, well separated almost 4"
15H 46M 57.65S +53° 37' 17.5" P.A. 83 SEP 3.5 MAG 9.98,10.35 SP G0
BU 946 AB: 508; 333x: B is a neat little point ~2" separated from very bright white A
15H 47M 37.92S +55° 22' 35.9" P.A. 129 SEP 2.3 MAG 5.91,9.53 SP A3M DIST. 73.8 PC (240.74 L.Y.)
STF 1948 AB: 508; 333x: Pretty light yellow stars, more than 2 delta, ~7" separation
15H 51M 10.09S +52° 54' 25.2" P.A. 280 SEP 6.4 MAG 6.89,8.94 SP A1V DIST. 127.06 PC (414.47 L.Y.)
AG 199 AB: 508; 333x: Wide near equal white stars.
15H 52M 00.35S +52° 33' 54.6" P.A. 254 SEP 9.6 MAG 9.46,9.71 SP F2 DIST. 206.61 PC (673.96 L.Y.)
HDS2126 AB; 508; 667x: ! Wow. At best focus and seeing, clean well split, more than one delta, very fine pair
15H 06M 10.47S +52° 24' 55.4" P.A. 294 SEP 0.6 MAG 11.18,11.01 SP G9 DIST. 120.48 PC (393.01 L.Y.)
ES 774 AB: 508; 333x: White stars, near equal, wide ~3" clean pair.
15H 07M 33.24S +50° 56' 01.6" P.A. 230 SEP 3.4 MAG 10.53,10.92 SP G0
COU1761 AB: 508; 333x: Nice, very fine near equal 11th magnitude pair, well split
15H 07M 42.04S +46° 33' 03.8" P.A. 267 SEP 1.2 MAG 11.38,11.55
TDS9416 AB: 667x: ! difficult. With finest focus, A is a round white pint, I need averted vision to show the B star which is exceedingly close, but separated from A. Lucky A is not too bright and there's little diffraction
15H 09M 08.26S +51° 11' 19.2" P.A. 211 SEP 0.5 MAG 11.39,11.64
MLR 635 AB: 508; 333x: Fine 11th magnitude pair, near equal white, ~2" separation, nice
15H 13M 30.89S +54° 01' 52.9" P.A. 127 SEP 2.2 MAG 11.04,11.14
HU 145 AB: 508; 333x: Very pretty white and blue stars, B can be detected and held with direct vision
15H 14M 07.13S +52° 35' 18.6" P.A. 132 SEP 2 MAG 10.06,12.17 SP A5 DIST. 249.38 PC (813.48 L.Y.)
ES 775 AB: 508; 333x: Nice blue-white stars, slight magnitude difference, wide ~7"
15H 14M 49.98S +50° 47' 38.8" P.A. 221 SEP 6.7 MAG 10.90,11.10
BEM 18 AB: 508; 333x: ~1 delta mag, wide. Physical
15H 18M 36.13S +51° 58' 58.3" P.A. 13 SEP 8.6 MAG 10.30,12.00
TDS9521 AB: 508; 333x: Faint, but direct vision pair, half delta mag, wide ~3". Not physical
15H 27M 07.44S +51° 26' 53.9" P.A. 138 SEP 3.3 MAG 11.87,12.40
HU 652 AB: 508; 333x: ! beautiful pair, ~1 delta, very close ~1" separation. Nice pair
15H 36M 06.19S +48° 48' 57.0" P.A. 186 SEP 1.2 MAG 9.25,9.58 SP F8 DIST. 145.35 PC (474.13 L.Y.)
COU 2109 AB: 508; 333x: Lovely white stars, ~1 delta mag, a little more than 1" separation
15H 36M 30.91S +49° 51' 00.4" P.A. 89 SEP 1.4 MAG 10.22,11.17 SP K0
HDS 2203: 508; 1067x: Out of round elongation only, but no resolution
15H 37M 55.38S +50° 04' 55.8" P.A. 128.3 SEP 0.15 MAG 8.03,9.84 SP G0 DIST. 46.45 PC (151.52 L.Y.)
TDS9568 AB: 508; 667x: B visible with averted vision only, extremely close but split with seeing only, it's a smudge otherwise
15H 37M 58.17S +52° 31' 47.1" P.A. 246 SEP 0.5 MAG 11.17,11.30
COU2110 Aa-Ab: 508; 667x: Suspect notched 667x, very small scale, near equal stars. Seeing did not support higher magnification
15H 38M 09.68S +50° 20' 41.2" P.A. 208 SEP 0.3 MAG 10.70,11.10
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