24 january 2022

This time with the 6-inch f/15, which now have the Argo Navis setting circles working. And how convienent they are! I can just align to a bright star in the area I want to observe, then the tour double stars from catalogs I've loaded, and can easily slew target to target. What a great tool. No charts, very effecient.

Seeing was average, but good enough for most observations:

STF 667 AB: 152; 175: Light yellow A and light orange B, 2 delta mag, well split 

05h 14m 41.31s -07° 04' 18.1" P.A. 316.00 sep 4.2 mag 7.15,8.78 Sp K2 dist. 297.62 pc (970.84 l.y.)

STF 701 AB: 152; 175x: Yellow A and orange B, wide.

05h 23m 18.50s -08° 24' 55.9" P.A. 139.00 sep 6.2 mag 6.13,8.09 Sp B8III dist. 122.7 pc (400.25 l.y.)

STF 688 AB: 152; 175x: Wide near equal, light yellow stars.

05h 19m 20.88s -10° 44' 49.9" P.A. 95.00 sep 10.5 mag 7.52,7.55 Sp K3V+F1

BU 189 AB: 152; 175x: B is very much fainter and rather wide.  One of Burnham's 6-inch discoveries

05h 20m 26.41s -05° 22' 03.1" P.A. 285.00 sep 4.6 mag 6.41,9.80 Sp B8III dist. 281.69 pc (918.87 l.y.)

STF 747 AB: 152; 175x: Wide near equal in cluster of stars, other double nearby

05h 35m 02.68s -06° 00' 07.2" P.A. 224.00 sep 36.3 mag 4.70,5.51 Sp B0.5V+B1V dist. 495.05 pc (1614.85 l.y.)

STF 752 AB: 152; 175x: Close pair, large delta mag. 

05h 35m 25.98s -05° 54' 35.6" P.A. 146.00 sep 12.5 mag 2.77,7.73 Sp O9III dist. 714.29 pc (2330.01 l.y.)

STF 754 AB: 152; 175x: Bright A and much fainter B, well separated

05h 36m 35.69s -06° 03' 53.1" P.A. 288.00 sep 5.3 mag 5.71,9.24 Sp B1V dist. 471.7 pc (1538.69 l.y.)

BU 13 AB: 152; 285x: Very close split, with seeing, at least 1 delta mag. Brunham says "In a low-power field  with STF 743"

05h 34m 32.43s -04° 29' 14.8" P.A. 144.00 sep 0.8 mag 7.57,9.22 Sp B8V

BU 743 AB: 152; 175x: Very fine, 1 Dm, just split.

03h 55m 38.76s +52° 15' 37.4" P.A. 261.00 sep 1.1 mag 8.86,10.03 Sp A5 dist. 336.7 pc (1098.32 l.y.)

STF 750 AB: 152; 175x: White A, light yellow 1 Dm B, well split

05h 35m 31.07s -04° 21' 50.6" P.A. 61.00 sep 4.2 mag 6.43,8.39 Sp B2.5IV dist. 361.01 pc (1177.61 l.y.)

BVD 51 AB: 152; 175x: Faint stars, very wide separation, 1 Dm

05h 15m 23.69s -03° 21' 57.4" P.A. 317.00 sep 44.5 mag 7.76,9.56 Sp F7V+G1V dist. 83.26 pc (271.59 l.y.)

H 6 68 AB: 152; 175x: Very wide, 1 Dm, faint.

05h 25m 01.20s -02° 48' 55.7" P.A. 282.00 sep 135.6 mag 7.31,9.16 Sp B5V dist. 425.53 pc (1388.08 l.y.)

DA 5 AB: 152; 175x: Textbook!  Bright stars, around 1 Dm, closely split.

05h 24m 28.62s -02° 23' 49.7" P.A. 77.00 sep 1.9 mag 3.56,4.87 Sp B1V+B2e dist. 299.4 pc (976.64 l.y.)

WNC 2 A-BC: 152; 175x: Excellent near equal white stars, nice.  BC is for the 20-inch, A 847, 7.67/7.84 0.2"

05h 23m 51.32s -00° 51' 59.8" P.A. 158.20 sep 3.1 mag 6.87,6.96 Sp F6V dist. 55.71 pc (181.73 l.y.)

STF 725 AB: 152; 175x: Light orange and very much fainter and wide B.

05h 29m 43.98s -01° 05' 31.8" P.A. 87.00 sep 12.7 mag 4.69,9.70 Sp K5III dist. 155.76 pc (508.09 l.y.)

STF 734 AB: 152; 175x: Exquisite close pair, 1 Dm, with a third star at a wide right angle.

05h 33m 07.35s -01° 43' 02.5" P.A. 355.00 sep 1.6 mag 6.67,8.22 Sp B4Vn dist. 315.46 pc (1029.03 l.y.)

BU 1048 AB: 152; 175x: Very bright white A, dim B is a tiny point, with seeing, in A's diffraction.  

05h 32m 41.35s -01° 35' 30.6" P.A. 355.00 sep 2.2 mag 5.30,9.80 Sp B1IV dist. 478.47 pc (1560.77 l.y.)

STF 743 AB: 152; 175x: Near equal, very close, around 1.5"

05h 34m 43.20s -04° 23' 31.5" P.A. 284.00 sep 1.8 mag 7.74,8.25 Sp B5V

STF 14 AB: 152; 175x: Bright white, wide 2 Dm B.

00h 15m 48.93s -11° 59' 24.7" P.A. 237.00 sep 14.5 mag 8.90,10.85 Sp A0V dist. 1724.14 pc (5624.14 l.y.)

STF 761 AB: 152; 175x: Double double with STF 762.  Really too many stars here being counted as double, it's a small cluster.

05h 38m 36.54s -02° 33' 12.7" P.A. 202.00 sep 68.1 mag 7.86,8.39 Sp B5V

BU 89 AB: 152; 285x: Very tough, notched elongation, much fainter B.  Burnham discovered with his 6-inch and says "A difficult pair with that aperture"  0.55" at discovery!

05h 37m 34.81s -01° 25' 19.6" P.A. 16.00 sep 0.7 mag 7.27,8.94 Sp B3/4V dist. 641.03 pc (2091.04 l.y.)

BU 1032 AB: 152; 450x: Can't see any out of round no matter the power used.  

05h 38m 44.77s -02° 36' 00.2" P.A. 243.30 sep 0.3 mag 4.07,5.27 Sp +B0.2V dist. 328.95 pc (1073.03 l.y.)

ALC 3 AE: 152; 175x: Orange A and super wide B.  WDS asserts physical based on proper motions

07h 29m 06.72s +31° 47' 04.3" P.A. 355.00 sep 755.4 mag 4.16,7.82 Sp F0V dist. 18.05 pc (58.88 l.y.)

STT 171 AB: 152; 175x: Extremely faint B, seen with averted vision only, very closely separated

07h 26m 39.61s +31° 37' 11.9" P.A. 138.00 sep 1.0 mag 7.39,9.19 Sp G5 dist. 159.49 pc (520.26 l.y.)

STF 1119 AB: 152; 175x: Very closely split, slight Dm

07h 38m 30.23s +33° 42' 41.4" P.A. 353.00 sep 3.3 mag 8.08,9.35 Sp F0 dist. 161.81 pc (527.82 l.y.)

STF 1126 AB: 152; 175x: Near equal hairline split, white stars

07h 40m 06.99s +05° 13' 51.9" P.A. 178.80 sep 0.8 mag 6.55,6.96 Sp A0III

STF 1134 AB: 152; 175x: White A and much fainter wide B

07h 43m 31.09s +03° 29' 09.8" P.A. 147.00 sep 9.6 mag 7.07,10.38 Sp F8 dist. 50.94 pc (166.17 l.y.)

STF 1137 AB: 152; 175x: 1 Dm white stars, well split.  

07h 46m 35.35s +04° 07' 50.1" P.A. 133.00 sep 3.1 mag 7.96,9.12 Sp F5 dist. 440.53 pc (1437.01 l.y.)

STF 1103 AB: 152; 175x: Light yellow A and light orang B, 1 Dm, well split

07h 30m 33.61s +05° 15' 16.8" P.A. 245.00 sep 4.2 mag 7.12,8.64 Sp B9 dist. 187.62 pc (612.02 l.y.)

STF 1149 AB: 152; 175x: Wide 1 Dm pair

07h 49m 29.79s +03° 13' 15.6" P.A. 41.00 sep 21.7 mag 7.81,9.19 Sp G0 dist. 130.21 pc (424.75 l.y.)

BU 21 AB: 152; 175x: Extremely faint B, well separated, seen with averted vision only

07h 28m 02.08s +06° 56' 31.5" P.A. 28.00 sep 4.3 mag 5.25,11.10 Sp F0III dist. 97.56 pc (318.24 l.y.)

STT 182 AB: 152; 245x: Extremely fine hairline split, near equal white

07h 52m 42.12s +03° 23' 02.2" P.A. 7.90 sep 0.9 mag 7.82,7.93 Sp A2 dist. 210.08 pc (685.28 l.y.)

STT 176 AB: 152; 175x: Fine, 2 Dm, around 4"

07h 38m 30.46s +00° 30' 18.1" P.A. 220.00 sep 1.5 mag 7.21,9.24 Sp B9 dist. 485.44 pc (1583.51 l.y.)

STF 1175 AB: 152; 175x: Very close, around 2", 1.5 Dm, fine pair.  Physical with 2929-year period

08h 02m 26.06s +04° 09' 07.5" P.A. 288.70 sep 1.4 mag 7.89,9.13 Sp G5 dist. 40.55 pc (132.27 l.y.)

STF 1182 AB: 152; 175: Fairly wide 1.5 Dm

08h 05m 24.43s +05° 49' 38.9" P.A. 75.00 sep 4.9 mag 7.48,8.76 Sp B9 dist. 328.95 pc (1073.03 l.y.)

STF 1074 AB: 152; 450x: Touching at all powers
07h 20m 31.07s +00° 24' 13.1" P.A. 172.00 sep 0.8 mag 7.44,7.80 Sp B9.5V dist. 228.31 pc (744.75 l.y.)

STF 1073 AB: 152; 175x: White A and 2 Dm wide B

07h 21m 00.62s +10° 11' 44.2" P.A. 67.00 sep 9.0 mag 7.87,10.15 Sp A1IV dist. 164.2 pc (535.62 l.y.)

STT 170 AB: 152; 450x: Notched elongation all powers.  289-year period, it will widen slightly in 20 years and may be splittable.

07h 17m 38.51s +09° 17' 31.5" P.A. 284.00 sep 0.6 mag 7.37,7.67 Sp G0IV-V dist. 41.61 pc (135.73 l.y.)