another night out

Again with the 20", but seeing was middling & transparency poor, so I mainly used the 8" mask.  I still have astigmatism problems, and I can't figure out if it's the mirror cell or thermal.  Maybe both.  But I do need to fix it if this scope is to be productive.

STF 1888: 8" 205x  A very pretty light yellow with 2 delta mag. light orange B, ~5".  AB seen.
14h 51m 23.38s +19° 06' 01.7" P.A. 297.9 sep 5.3 mag 4.76,6.95 Sp G8V+K5V dist. 6.71 pc (21.89 l.y.)
STF 1919: 8" 205x  Pretty wide separated stars, both white with a tint of yellow.  Half delta mag.
15h 12m 43.48s +19° 17' 09.8" P.A. 11 sep 23.4 mag 6.71,7.38 Sp G1V+G5V dist. 27.24 pc (88.86 l.y.)

Ho 575: Tried a variety of combinations for this one:
8" 205x: Light orange star; no double seen
8" 410x: no double seen
8" 667x: Still none -- A is steady & round
20" 667x: Light orange A messy by airy disk is there.  The B star reveals itself, 5" and a hazy blue.
20" 410x: Disks are smaller, B more clearly resolved.
20" 333x: Best star images.
Transparency is poor -- I can smell the water vapor in the air, like the approach of rain -- likely adding to the extinction. 
19h 18m 47.20s -05° 46' 20.9" P.A. 10 sep 5.8 mag 8.03,11.65 Sp A0 dist. 223.21 pc (728.11 l.y.)

Back goes the aperture mask for a dimmer, if cleaner, view.

STF 1950: 8" 333x  Dull orange A, 1.5 delta mag, B ~4", a flatter orange color.
15h 29m 58.46s +25° 30' 31.1" P.A. 93 sep 3.4 mag 8.07,9.23 Sp K4III dist. 485.44 pc (1583.51 l.y.)

STF 1932: 8" 333x  Near equal, yellowish white, ~2"
15h 18m 20.19s +26° 50' 24.7" P.A. 266.8 sep 1.62 mag 7.32,7.41 Sp F6V+F6V dist. 35.98 pc (117.37 l.y.)

STF 1937: 8" 333x  Suspect elongation.  8" 667x definite egg shape.  20" 667x: Can't get a good focus.
15h 23m 12.23s +30° 17' 17.7" P.A. 256.1 sep 0.39 mag 5.64,5.95 Sp F8V+G0V dist. 17.86 pc (58.26 l.y.)