21 october 2020

Last night's transparency started out poor, but in a reverse of normal circumstance improved a bit through the night.  Seeing was borderline average to good, and in the beginning I vacillated between full aperture & the 8-inch mask, until finally settling on full aperture with the apodising mask.  Observed until about 11:30pm, and some good pairs seen.

STT 463 AB: 508; 205x: Beautiful yellow A star and much fainter deeper yellow B, ~4", very attractive.  Physical
22H 10M 19.66S +13° 44' 56.9" P.A. 2 SEP 3.6 MAG 8.19,11.46 SP G0 DIST. 51.92 PC (169.36 L.Y.)

CHE 329 AB: 203; 205x: Faint pair, B seen with averted vision, ~5", very nice.  Physical 
22H 10M 56.02S +12° 03' 04.8" P.A. 87 SEP 4.9 MAG 11.49,12.70

BU 698 AB: 203; 205x: B seen with averted vision, and then I can barely hold it direct with foveal coaxing.  Widely separated and large delta mag.  Discovered with the 18.5-inch at 9.97".  Burnham called it "fixed," which it seems it is not after all.

22H 11M 54.70S +06° 53' 46.7" P.A. 338 SEP 10.7 MAG 7.18,11.80 SP A7IV DIST. 91.66 PC (298.99 L.Y.)

HDS 3150 AB: 508; 667x: Heavily notched snowman at both 667x & 1067x.  Light orange stars, significant mag difference.  It wants to split but won't with the seeing this night.
22H 12M 13.37S +08° 27' 38.0" P.A. 296 SEP 0.2 MAG 9.05,9.33 SP F8 DIST. 133.51 PC (435.51 L.Y.)

HU 978 AB: 203; 205x: Beautiful close split ~1", noticeable delta mag, light yellow A and light blue B.
22H 12M 45.31S +13° 54' 37.0" P.A. 205 SEP 1.2 MAG 9.12,9.58 SP G0

BU 699 AB: 203; 205x: B is very much fainter and just barely noticed with direct vision at both 205x & 333x, ~2", light orange A.  Burnham discovered with the 18.5-inch at 2.04"

22H 13M 44.35S +07° 42' 53.9" P.A. 183 SEP 2.3 MAG 7.90,12.00 SP K2 DIST. 298.51 PC (973.74 L.Y.)

HU 287 AB: 508; 333x: Seen at 205x but have a better view at 333x.  A is a brighter light yellow-white and B very faint, very close in, ~1" but seems closer due to the large delta mag.  Resolved with seeing.  Physical
22H 17M 06.55S +08° 22' 27.3" P.A. 80 SEP 1.3 MAG 7.73,11.24 SP F0 DIST. 153.61 PC (501.08 L.Y.)

A 628 AB: 508; 205x: Very fine but resolves nicely, B is a bit more than 1" separated, light yellow-white A and bluish B. 
22H 21M 11.35S +10° 53' 41.1" P.A. 223 SEP 1.2 MAG 8.64,11.60 SP K0

STF 2898 AB: 508; 205x: Easy wide one delta.  Physical.
22H 22M 17.81S +11° 04' 48.6" P.A. 283 SEP 12.6 MAG 9.13,10.36 SP F7V DIST. 56.02 PC (182.74 L.Y.)

HO 292 AB: 508; 205x: White A and ruddy B which is much fainter, wide.
22H 23M 15.11S +05° 38' 47.8" P.A. 65 SEP 3.9 MAG 7.66,11.24 SP A2 DIST. 141.04 PC (460.07 L.Y.)

STF 2901 AB: 508; 205x:  Ice blue A and yellow-orange B, ~2", very attractive pair
22H 24M 27.45S +03° 49' 05.8" P.A. 149 SEP 3.3 MAG 9.22,10.05 SP F0 DIST. 228.83 PC (746.44 L.Y.)

BU 291 AB: 508; 667x: Strongly notched overlapping disks, significant mag difference.
22H 27M 42.95S +04° 31' 24.6" P.A. 220 SEP 0.4 MAG 9.80,9.80 SP F8

COU 5 AB: 508; 333x: Very finely split at 205x, very definite with 333x.  White near equal stars
22H 28M 10.32S +09° 10' 06.2" P.A. 250 SEP 0.9 MAG 10.52,11.16 SP G0

STF 2925 AB: 508; 205x: Wide white stars, near equal
22H 37M 52.89S +05° 54' 25.8" P.A. 4 SEP 7.2 MAG 9.66,10.35 SP F5 DIST. 248.76 PC (811.46 L.Y.)

HO 296 AB: 508; 667x: Definite smaller point or appendage sprouting from A's disk, >1 delta mag, and more than subtle notching.  PA is to the north which matches the current position.   Physical with 20.83 year period, now at 0.362", it will close rapidly and likely be impossible to detect by 2023, then become detectable (at 0.3") by 2029.  One to keep an eye on.  

22H 40M 52.71S +14° 32' 57.5" P.A. 38.7 SEP 0.362 MAG 6.14,7.22 SP G4V DIST. 33.8 PC (110.26 L.Y.)

STF 2931 AB: 508; 205x: Dull orange-white A and light orange B, wide, almost 2 delta mag.  Physical
22H 41M 17.77S +13° 10' 31.2" P.A. 149 SEP 4.5 MAG 9.13,10.15 SP K0 DIST. 63.09 PC (205.8 L.Y.)

BU 480 AB: 508; 205x: Very finely split at 205x's small scale thirteen, ~1", half delta mag, nice pair
22H 41M 23.32S +04° 43' 21.3" P.A. 62 SEP 1.1 MAG 9.68,10.21 SP G0

BU 711 AB: 508; 205x: Very fine, ~1.5 delta mag, >1" separation, nice
22H 45M 27.86S +11° 11' 30.9" P.A. 349.2 SEP 2.65 MAG 10.25,11.43 SP K6V: DIST. 41.61 PC (135.73 L.Y.)

HO 482 AB: 508; 533x: !! Excellent split, white stars, slight magnitude difference, really good.  Physical with 383 year period
22H 51M 26.66S +26° 23' 27.9" P.A. 14.3 SEP 0.57 MAG 7.34,8.29 SP A9V DIST. 132.63 PC (432.64 L.Y.)

COU 239 AB: 508; 205x: ! Really excellent pair, faint but comfortably split, slight delta mag, very pretty
22H 51M 56.95S +22° 19' 21.0" P.A. 297 SEP 2.1 MAG 10.95,11.36 SP F5