Opened the 20-inch in anticipation of the forecasted clear skies and good seeing. It was a good night and seeing was good, slowly improving through the night. I wish I could have stayed out longer as it got better and better, but I wrapped up around 12:30am. Spent most of the time on Burnhams as a warm up and then did a few movement pairs. With apodizing mask throughout.
BU 53 AB: 508; 280x: Lovely 1 Dm split, white stars in a rich field. -39% PRO, it is not binary.
19h 35m 27.22s +11° 26' 22.4" P.A. 246.00 sep 1.7 mag 9.23,10.27 Sp A2
BU 66 AB: 508; 280x: Light yellow unequal stars, close split. -23% PRO it is not binary.
20h 48m 06.26s +27° 27' 25.3" P.A. 169.00 sep 1.1 mag 8.76,9.28 Sp F0 dist. 456.62 pc (1489.49 l.y.)
BU 164 AB: 508; 1270x: Overlapping disks, unequal, N-S PA hard to tell which (probably PA S). [Actually, NW but how to tell with this separation?] Now at periastron, SOC grade 4 361.5-year period, it will slowly widen to a doable 0.4" in 2050. Part of STF 2793.
21h 25m 05.66s +09° 23' 02.6" P.A. 300.2 sep 0.033 mag 8.17,8.30 Sp A5IV-V dist. 136.05 pc (443.8 l.y.)
BU 361 AB: 508; 140x: Unequal well split, white. 21% PRO, 1209 AU WS, 2.0+1.8 Msol, it might be binary and needs an orbit.
19h 50m 17.07s +22° 39' 54.7" P.A. 348.00 sep 3.6 mag 9.37,9.93 Sp A0
BU 364 AB: 508; 280x: Light yellow, unequal, close split. 42% PRO, 55 AU WS, 1.0+1.0 Msol, it is probably binary. SOC grade 4, 856-year period.
20h 47m 03.56s +25° 24' 49.3" P.A. 80.00 sep 0.6 mag 9.00,9.12 Sp G5
BU 445 AB: 508; 200x: Light yellow-orange A, and very faint well split companion. 2% PRO, 911 AU WS, 2.9+1.0 Msol, it is possible they are binary and an orbit can be tried.
21h 03m 29.53s +29° 05' 33.0" P.A. 109.00 sep 4.7 mag 7.00,11.14 Sp G8III dist. 197.24 pc (643.4 l.y.)
BU 446 AB: 508; 280x: Very fine faint B, well split. -39% PRO, it is not binary.
21h 20m 44.34s +33° 26' 49.2" P.A. 258.00 sep 3.2 mag 9.27,12.30 Sp A5
BU 650 AB: 508; 200x: Lovely grouping, two faint stars form "L" shape near bright white star. -20% it is not binary.
19h 32m 13.13s +06° 30' 11.3" P.A. 146.00 sep 6.5 mag 8.17,11.70 Sp B9IVp
BU 657 AB: 508; 280x: ! Incredibly fine, very faint B seen with lower power but better with high. -43% PRO, it is not binary.
19h 43m 49.05s +22° 37' 56.5" P.A. 133.00 sep 0.9 mag 9.78,10.47 Sp F0
BU 659 AB: 508; 140x: Well split faint star from bright white A. -89% PRO it is not binary.
19h 54m 40.18s +07° 08' 25.3" P.A. 303.00 sep 14.7 mag 6.15,12.00 Sp A2V dist. 81.77 pc (266.73 l.y.)
BU 677 AB: 508; 140x: Light orange A and well separated faint B, looks like an artist's rendition of a planet. 22% PRO, 1275 AU WS, 3.9+0.8 Msol, it is possibly binary and needs an orbit.
20h 47m 10.72s +34° 22' 26.8" P.A. 120.00 sep 10.0 mag 4.94,10.03 Sp K3III dist. 136.43 pc (445.03 l.y.)
BU 828 AB: 508; 200x: Well separated white stars, 2 Dm. 28% PRO, 1892 AU WS, 3.5+2.0 Msol, it is possibly binary and needs an orbit.
19h 46m 56.51s +06° 09' 48.8" P.A. 15.00 sep 3.0 mag 8.48,10.40 Sp B9
BU 829 AB: 508; 280x: Lovely close split, white stars, 1 Dm. -32% PRO it is not binary.
19h 48m 56.02s +05° 44' 54.5" P.A. 314.00 sep 0.8 mag 9.08,9.75 Sp A0
BU 976 AB: 508; 200x: Very nice yellow-white A and 3 Dm close light yellow B. 72% PRO, 529 AU WS, 2.9+1.3 Msol, it is likely binary and needs an orbit.
19h 32m 12.69s +09° 20' 03.5" P.A. 96.00 sep 2.3 mag 7.06,10.68 Sp B9.5IV-V dist. 275.48 pc (898.62 l.y.)
BU 978 AB: 508; 280x: Excellent near equal white close pair. 83% PRO, 894 AU WS, 3.3+3.2 Msol, it is likely binary and needs an orbit.
19h 51m 28.66s +23° 31' 46.7" P.A. 58.00 sep 1.1 mag 9.56,9.67 Sp B3
BU 1132 AB: 508; 560x: Beautifully close split, significantly unequal white stars. No Gaia data on B.
19h 43m 14.79s +27° 01' 06.4" P.A. 212.00 sep 0.6 mag 9.35,9.94 Sp B8
BU 1471 AB: 508; 280x: Needed higher power to darken sky contrast for faint well split B. -1% PRO, 8942 AU WS, it is not likely binary.
19h 38m 27.48s +17° 15' 26.0" P.A. 333.00 sep 12.5 mag 7.51,11.86 Sp B0.5V dist. 719.42 pc (2346.75 l.y.)
HU 371 AB: 508; 1270x: Feel B is to the N, very subtle elongation. No Gaia data for either. SOC grade 3 orbit, 178.6-year period, it will only tighten in the coming decades.
21h 35m 27.03s +24° 27' 07.9" P.A. 319.00 sep 0.2 mag 6.83,7.27 Sp A3V dist. 197.63 pc (644.67 l.y.)
