11 july 2020

As typical the forecast was for better conditions than I encountered last night.  There was a slight haze settled over the Bay Area--the forward lights on planes cast their beams--so I assume the forecast was for higher elevations.  The seeing was to be "good" but it was only good with the 8-inch mask, and even then I couldn't go above 333x.  Nevertheless it was a fun session, ending around 1am, and I had some challenging observations at this aperture and magnification.

STF 2021 AB: 203; 205x: 49 Ser. Light yellow orange, near equal, bright, wide ~4".  Physical, 1354 year period
16H 13M 18.45S +13° 31' 37.2" P.A. 357.5 SEP 4.05 MAG 7.43,7.48 SP G9V DIST. 23.58 PC (76.92 L.Y.)


HO 64 AB: 203; 205x: Faint but easily split & resolved pair, near equal, ~3-4".  Not physical
16H 30M 47.09S +27° 46' 38.9" P.A. 109 SEP 4.4 MAG 11.65,11.59

STF 2061 AB: 203; 205x: Bright white A, B is very faint.  Finely resolved ~3-4", very significant mag difference
16H 33M 12.49S +30° 54' 27.0" P.A. 29 SEP 2.4 MAG 7.92,10.44 SP F2 DIST. 121.21 PC (395.39 L.Y.)

COU 489 AB: 203; 333x: Suspected at 205x but used 333x for larger scale.  B seen with great difficulty, averted vision only as a flash, <1".  Light yellow bright A star
16H 36M 48.95S +26° 31' 55.8" P.A. 334 SEP 0.8 MAG 8.10,10.19 SP F5 DIST. 87.64 PC (285.88 L.Y.)

COU 622 AB: 203; 205x: Easily split, if faint, near equal.
16H 36M 58.75S +29° 03' 56.9" P.A. 304 SEP 1.6 MAG 11.30,12.30 SP G5

COU 414 AB: 203; 205x: Split with seeing but it's there, near equal white stars, very fine split
16H 39M 34.88S +23° 43' 35.1" P.A. 196 SEP 1.7 MAG 10.89,11.05 SP F8

A 349 AB: 203; 333x: V908 Her. Elongation with averted vision, can't coax any better view.  Light yellow.  Physical, 135.69 year period.
16H 41M 17.67S +30° 06' 36.2" P.A. 128 SEP 0.67 MAG 10.66,10.91 SP K6
 
SEI 540 AB: 203; 205x: Pretty wide, ~2 delta pair.
16H 42M 35.18S +31° 12' 58.3" P.A. 227 SEP 11.5 MAG 9.55,11.10 SP F0 DIST. 172.12 PC (561.46 L.Y.)

STF 2095 AB: 203; 205x: 46 Her. Striking pair, ice blue A, ~2 delta mag ruddy B, wide ~5".
16H 45M 05.23S +28° 21' 28.9" P.A. 160 SEP 5.3 MAG 7.36,9.16 SP F7III DIST. 215.98 PC (704.53 L.Y.)

TDS 836 AB: 203; 205x: Faint but fine pair, noticeable mag difference, about half delta mag, nicely split ~2"
16H 47M 35.42S +31° 29' 15.8" P.A. 218 SEP 2.6 MAG 10.28,11.14

BU 821 AB: 203; 205x: ! Nice, exceedingly fine split at this low magnification, noticeable mag difference, white stars. Burnham discovered with 15.5-inch Washburn.
16H 51M 50.65S +31° 50' 36.3" P.A. 323 SEP 1.3 MAG 9.83,10.48 SP G5

ROE 3 AB: 203; 205x: Almost need averted vision for B, ~1 delta mag, ~5"
16H 52M 07.27S +30° 05' 09.0" P.A. 21 SEP 6.1 MAG 10.75,11.20

A 350 AB: 203; 333x: Snowman at best moments, slight mag difference.  Seeing not permitting higher magnification.
16H 53M 59.79S +29° 06' 23.5" P.A. 144 SEP 0.6 MAG 9.47,9.61 SP F8

BRT 172 AB: 203; 205x: Wide ~5", ~1 delta mag.  B nearly needs averted but I can just hold it direct.
16H 56M 45.14S +27° 33' 31.0" P.A. 217 SEP 4.8 MAG 10.20,11.50

STF 2112 AB: 203; 205x: Sharp white pair, ~2", ~1 delta mag.
16H 58M 14.68S +31° 47' 27.6" P.A. 263 SEP 2.1 MAG 9.68,10.29 SP G5 DIST. 301.2 PC (982.51 L.Y.)

TDS 850 AB: 203; 205x: B needed to flash with averted vision at first, and the best I can get is a hazy elongation, <2"
17H 04M 25.61S +27° 50' 55.5" P.A. 205 SEP 1.4 MAG 10.94,11.27

SLE 11 AB: 203; 205x: Easy wide near equal.  Not Physical
17H 11M 46.73S +29° 05' 42.8" P.A. 285 SEP 9.2 MAG 11.36,12.30

STT 328 AB: 203; 205x: 68 Her.  ! Very nice, white stars.  Very bright A, B like a planet, a point of light, well separated from A
17H 17M 19.57S +33° 06' 00.4" P.A. 56 SEP 4.5 MAG 4.70,10.30 SP B1.5VP DIST. 204.08 PC (665.71 L.Y.)

BU 629 AB: 203; 205x: ! Fine split and with seeing, significant mag difference, ~1".  Burnham discovered with Dearborn 18.5-inch @ 0.99".
17H 17M 29.38S +32° 05' 11.3" P.A. 340 SEP 1.2 MAG 8.96,10.00 SP F5

STF 2147 AB: 203; 205x: ! V944 Her. Very nice bright light yellow-orange A, B is vey much fainter but can just see directly.  Wide ~5", really nice sight
17H 17M 34.65S +28° 54' 47.7" P.A. 93 SEP 3 MAG 7.10,11.00 SP MIII DIST. 1351.35 PC (4408.1 L.Y.)

HO 414 AB: 203; 333x: Suspect @ 205x, hairline split @ 333x.  White stars, noticeable mag difference.
17H 22M 09.89S +26° 05' 12.4" P.A. 103 SEP 0.8 MAG 9.43,9.74 SP G0

HO 415 AB: 203; 205x: Fine split, resolved with seeing, white stars, considerable delta mag.
17H 23M 07.69S +25° 45' 11.1" P.A. 345 SEP 0.9 MAG 8.83,9.67 SP F5

HU 671 AB: 203; 333x: Snowman only, slight magnitude difference.
17H 23M 49.03S +21° 55' 09.6" P.A. 259 SEP 0.8 MAG 8.73,9.72 SP F1V DIST. 161.81 PC (527.82 L.Y.)

GLP 7 AB: 203; 205x: Easy white A and wide bluish B.  Discoverer is Sergi Glasenapp, 1847-1937, Russian, observed from Poulkova, has a moon crater and a minor planet named for him.
17H 34M 17.60S +15° 18' 38.7" P.A. 244 SEP 9.1 MAG 8.87,11.26 SP F5 DIST. 223.71 PC (729.74 L.Y.)

STT 332 AB: 203; 205x: White to slightly reddish A, faint B, wide, large mag difference
17H 34M 54.05S +15° 18' 59.0" P.A. 111 SEP 10.5 MAG 8.19,11.15 SP K0

HEI 249 AB: 203; 205x: Very ight but split dual 11th mag stars, slight magnitude difference, sharp with seeing and cleanly resolved.
17H 37M 26.08S +16° 18' 08.1" P.A. 233 SEP 1.6 MAG 10.59,11.12

J 455 AB: 203; 205x: I can elongate with averted vision, suspect a pair with direct vision, but the sky is a bit too hazy to resolve.  Not physical
17H 39M 36.24S +15° 54' 09.9" P.A. 205 SEP 2.7 MAG 11.13,11.45

J 2115 AB: 203; 205x: Wide one delta mag.
17H 43M 59.54S +14° 54' 14.0" P.A. 224 SEP 6.6 MAG 10.21,10.80