My first task was to compare the views in two finderscope eyepieces, the 20mm SWA from Agena and a 35mm old tank eyepiece I acquired, to which I added crosshairs (using real hair -- worked surprisingly well though I was a little off-center). I compared the same star fields and noted what I could see -- in the end the 20mm won because of better contrast, easier eye positioning, and having nearly the same field, despite some coma at the outer edges. I dislike the double cross hair in the 20mm but decided I could live with it.
I started in on some doubles following the CDSA:
Delta Her: Nice wide pair, good image quality, yellow and lighter yellow, 277x. [AB seen. A is a 0.1" pair need to give it a try in the 20-inch.]
17H 15M 01.92S +24° 50' 22.5" P.A. 288 SEP 12.7 MAG 3.12,8.30 SP A3IV DIST. 23.04 PC (75.16 L.Y.)
Shy 713: Nice wide finder split, near equal mag yellow stars. 277x
17H 11M 03.17S +24° 14' 15.4" P.A. 74 SEP 195.5 MAG 6.22,6.98 SP A8V+F2V DIST. 82.3 PC (268.46 L.Y.)
STF 2194: Pretty orange and blue, 2 delta mag, very wide. 83 Her nearby is a reddish-orange color. 277x [AB seen, AC much wider.]
17H 41M 05.50S +24° 30' 47.2" P.A. 9 SEP 16.5 MAG 6.51,9.28 SP K1III DIST. 161.81 PC (527.82 L.Y.)
STF 2198: Orange star with very much fainter bluish B, seen at the edge of AV/DV, wide. 277x
17H 42M 38.37S +26° 33' 06.1" P.A. 25 SEP 7.7 MAG 7.63,11.22 SP K0III DIST. 176.68 PC (576.33 L.Y.)
STF 2220: Bright yellow with diffraction spikes and some haze around it (transparency). 4 delta mag small star on the edge of the haze, wide separation. 277x [A,BC seen. Several more pairings in this system, including AC 7 = BC 0.6" equal mags I should have been able to resolve, TRN 7 = Aa,Ab 1.6" 9.21 delta mag. Need to give this another try.]
17H 46M 27.51S +27° 43' 14.3" P.A. 249 SEP 35.5 MAG 3.49,9.78 SP G5IV+M3.5 DIST. 8.31 PC (27.11 L.Y.)
STF 2232: Pretty blue-white pair, 3 delta mag, fairly wide. 277x
17H 50M 15.00S +25° 17' 27.6" P.A. 138 SEP 6.3 MAG 6.71,8.85 SP A1V DIST. 147.49 PC (481.11 L.Y.)
LDS 6413: Pretty orange star A. B 13th mag 88" -- not likely seen though there are several very faint stars about. 277x
18H 00M 38.89S +29° 34' 18.9" P.A. 105 SEP 87.7 MAG 7.08,13.10 SP G2V+M DIST. 28.36 PC (92.51 L.Y.)
AC 15 = 99 Her: ! Bright yellow star, suspected double at 277x but needed 553x to resolve a 9th mag orange B when seeing stilled, resolved as a point just outside where the diffraction ring was. CDSA: "Local, solar type binary, faint field. AB system 1.8 solar mass, p=56 y orbit r = 17 AU, e = 0.77, apastron 2025" [7 star system, saw AB, rest are >10th mag and wide except for SCA 170 = Aa,Ab which is 0.2" but no magnitude given -- try with the 20-inch]
18H 07M 01.61S +30° 33' 42.7" P.A. 331.4 SEP 1.44 MAG 5.13,8.96 SP F7V DIST. 15.64 PC (51.02 L.Y.)
H V 93: Finder split, wide = white. 277x.
STF 2315: ! Hairline split @ 553x near equal mag. Suspected elongation at 277x. [I observed this before and reported overlapping disks. 5 stars in system faint and wide]
18H 24M 58.46S +27° 23' 41.3" P.A. 115.7 SEP 0.6 MAG 6.57,7.77 SP A0V+A4V DIST. 117.51 PC (383.32 L.Y.)
BU 1326: Extremely faint 5" and another faint farther out. Physical? 553x. [BU a triple there are 5 stars in the system; AB & AC seen]
18H 26M 40.93S +26° 26' 57.2" P.A. 104 SEP 4.7 MAG 6.48,12.10 SP B3V DIST. 321.54 PC (1048.86 L.Y.)
I ended the night on Mars, using binoviewers at 310x, the apodizing mask, and the planetary filter. The pole was nice and there were some dark features (Mare Cimmerium) ringed around it in the temperate zone. The rest seemed to have features which were obscured by clouds, and the southern rim (Utopia) had a blue-yellow fringe.
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