15 february 2023

Seeing was predicted to be good after 10pm with good transparency throughout, so I opened up the 20-inch.  I adjusted the clock setting on the Argo and was able to make a wider spread of alignment stars, and this seemed to help pointing accuracy for the night.  It was cold, into the upper 30s, but I was dressed for it.  No significant dew but the sky transparency was hurt by the haze which builds up in the Bay during such conditions.  I masked down to 7-inches to start and knocked off more from the Struve list.  After 10:20pm I thought seeing might be slightly improved, so I tried some stars off the 6th Orbital Catalog list, with a couple short periods observed.  A good night with a lot of observations. 

STF 749 AB: 178; 250x: Very nice near equal pair, elongated at lower powers nicely split with 250x.  Amazingly there is no parallax range overlap, -19%, so in spite of the mere 212 AU weighted separation, 2.9+2.9 Msol, it might not be binary.  SD gives a grade 4 orbit with a 773-year period.

05h 37m 08.84s +26° 55' 28.3" P.A. 317.50 sep 1.1 mag 6.54,6.55 Sp B9IV-V dist. 154.8 pc (504.96 l.y.)

STF 779 AB: 178; 140x: 1 Dm, fairly wide white stars.  No parallax overlap, -39%, they are not binary.

05h 44m 21.16s +27° 43' 53.3" P.A. 254.00 sep 8.6 mag 7.50,9.78 Sp A0 dist. 271.74 pc (886.42 l.y.)

STF 805 AB: 178; 140x: Very slight delta mag, wide, the secondary star is light orange.  There is 59% parallax range overlap, 6,971 AU weighted separation, 3.4+2.9 Msol, so there is some possibility these are binary.  SD says proper motion indicates not physical, but this could be just the direction of the orbit.

05h 51m 48.20s +28° 26' 59.6" P.A. 50.00 sep 12.1 mag 8.41,8.87 Sp A2

STF 785 AB: 178; 140x: Slight delta, wide.  There is no parallax range overlap, -69%, it is not binary.

05h 45m 55.39s +25° 54' 49.3" P.A. 347.00 sep 14.7 mag 7.27,8.32 Sp B9

STF 776 AB: 178; 140x: Fine split, 1 Dm.  There is 42% overlap of the parallax ranges, only 425 AU weighted separation, 1.7+1.4 Msol, so there is a chance this is binary and an orbit should be tried.

05h 43m 03.19s +25° 21' 47.8" P.A. 97.00 sep 2.7 mag 8.51,9.78 Sp A0 dist. 122.25 pc (398.78 l.y.)

STF 716 AB: 178; 140x: Bright stars, more than half delta magnitude, closely split.  There is no overlap of the parallax ranges, -48%, these are not binary.  

05h 29m 16.49s +25° 09' 01.1" P.A. 209.00 sep 4.6 mag 5.83,6.68 Sp B8.5V+A0V dist. 130.38 pc (425.3 l.y.)

STF 694 AB: 178; 250x: Very finely split with low powers, best seein with 250x, about 1 Dm.  No other stars in the field!  No parallax range overlap, -17%, sadly these are not likely to be binary.

05h 24m 01.17s +24° 57' 37.8" P.A. 13.00 sep 1.3 mag 8.65,8.54 Sp A2 dist. 114.16 pc (372.39 l.y.)

STF 686 AB: 178; 250x: Near equal, wide.  There is 74% overlap of the parallax ranges, 1,070 AU weighted separation, 1.3+1.2 Msol, and the radial velocity delta 0.2 is less than the escape velocity 2.0, so these are likely binary and an orbit should be tried.

05h 20m 56.18s +24° 02' 13.7" P.A. 226.00 sep 9.3 mag 9.21,9.40 Sp F2

STF 755 AB: 178; 250x: Slight delta, well split, pretty orange star in view to the northeast.  There is no overlap of the parallax ranges, -44%, so these are not likely binary.

05h 39m 09.17s +23° 17' 17.7" P.A. 318.00 sep 6.2 mag 8.88,9.50 Sp F8

STF 777 AB: 178; 140x: Faint pair, near equal, wide.  An unremarkable pair, but it turns out there is 62% overlap of the parallax ranges, 1,862 AU weighted separation, 2.3+2.1 Msol, and the radial velocity delta 0.3 is less than the escape velocity 2.0, so it is likely binary and an orbit should be tried.

05h 43m 20.78s +22° 12' 45.7" P.A. 84.00 sep 4.7 mag 9.35,9.75 Sp A0

STF 742 AB: 178; 140x: 1 Dm, well split, light orange stars.  There is no overlap of the parallax ranges, -17%, so in spite of the other data being good, 310 AU weighted separation, 1.6+1.4 Msol, 0.5 radial velocity delta vs. 4.1 escape velocity, this may not be binary.  SD is giving a grade 5 orbit of 2959-years.

05h 36m 26.38s +21° 59' 35.1" P.A. 276.20 sep 4.2 mag 7.09,7.47 Sp F8 dist. 67.43 pc (219.96 l.y.)

STF 772 AB-C: 178; 140x: Wide, near equal stars.  There is no Gaia parallax data for the primary star.  AB is A 2110, 0.5" 9.6/9.7, which I did not try for because of the mediocre seeing.  

05h 42m 05.81s +21° 34' 49.0" P.A. 243.00 sep 30.6 mag 8.88,9.65 Sp A0

STF 787 AB: 178; 550x: Hairline split only with high power and 7-inches.  The split was easy using 20-inch.  Gaia data shows there is no overlap of the parallax ranges, -47%, in spite of the mere 96 AU weighted separation, 1.5+1.6 Msol, these might not be binary.  SD is giving a grade 5 orbit of 920-years.

05h 46m 00.80s +21° 19' 04.5" P.A. 53.10 sep 0.7 mag 8.27,8.81 Sp F2 dist. 157.73 pc (514.52 l.y.)

STF 740 AB: 178; 140x: Unequal pair, wide separation.  There is no overlap of the parallax ranges, -89%, it is not binary.

05h 36m 23.02s +21° 11' 11.4" P.A. 122.00 sep 21.7 mag 9.01,9.93 Sp B2:III:pe

STF 786 AB: 178; 140x: Fairly faint pair, 1 Dm, well separated.   There is 5% parallax range overlap, 1,925 AU weighted separation, 2.8+1.5 Msol, but the radial velocity delta 2.8 exceeds the escape velocity 2.0, this is not likely to be binary.

05h 45m 59.50s +20° 14' 59.6" P.A. 336.00 sep 6.5 mag 8.24,11.30 Sp K0

STF 771 AB: 178; 140x: Near equal, wide, faint stars.  There is no overlap of the parallax ranges, it is not binary.

05h 41m 44.85s +19° 32' 32.2" P.A. 55.00 sep 21.7 mag 10.27,10.17

STF 770 AB: 178; 250x: Difficut pair, faint B appears with seeing only, 1" separation, 1 Dm.  There is 51% overlap of the parallax ranges, only 566 AU weighted separation, 3.0+2.3 Msol, so this is likely binary and needs an orbit.

05h 41m 34.67s +19° 13' 13.7" P.A. 330.00 sep 1.1 mag 8.76,9.77 Sp A0

STF 806 AC: 178; 140x: Very slightly unequal wide, white, stars, seems to be in front of a very faint open cluster.  There is 15% parallax range overlap, 9,929 AU weighted separation, 3.1+3.1 Msol.  While there is some chance these are binary it's more likely they're not.  Did not notice J677 AB, 10.0/10.8 1.9", but I should have.  But this also is not binary, -23% overlap of the parallax ranges.

05h 51m 06.47s +17° 53' 31.8" P.A. 201.00 sep 11.1 mag 10.09,10.05

STF 759 AB: 178; 140x: 1 Dm, wide.  There is -93% overlap of the parallax ranges, it is not binary.

05h 38m 47.57s +17° 45' 01.9" P.A. 326.00 sep 29.3 mag 9.09,9.94 Sp A0

STF767 AB = BU1401 AB: 178; 140x: 1 Dm, wide.  No overlap of the parallax ranges, -86%, it is not binary.

05h 47m 31.96s +17° 37' 09.5" P.A. 170.00 sep 15.2 mag 9.85,11.14 Sp A0

STF 730 AB: 178; 140x: Near equal bright white stars, wide.  There is no overlap of the parallax ranges, -23%, it is not binary.

05h 32m 14.14s +17° 03' 29.3" P.A. 142.00 sep 9.7 mag 6.06,6.44 Sp B7IIIe dist. 917.43 pc (2992.66 l.y.)

STF 733 AB: 178; 140x: Slightly unequal white pair, wide.  There is 53% parallax range overlap, 4,198 AU weighted separation, 1.8+1.7 Msol, and the radial velocity delta 0.3 is less than the escape velocity 1.2, so surprisingly this is probably binary and needs an orbit.

05h 33m 28.27s +16° 00' 52.9" P.A. 41.00 sep 12.4 mag 9.84,10.39 Sp A0

STF858 = STF 855 5.7/6.7 29"  

STF 855 AB: 178; 140x: Wide one delta bright stars.  There is 61% parallax range overlap, 5,194 AU weighted separation, 3.5+2.6 Msol, and the radial velocity delta 1.3 is just below the escape velocity 1.4, so it is possibly binary and needs an orbit.

06h 08m 57.90s +02° 29' 58.9" P.A. 115.00 sep 29.1 mag 5.68,6.68 Sp A3Vn+A0V dist. 200.8 pc (655.01 l.y.)

STF 846 AB: 178; 140x: Faint stars, 2 Dm, wide.  There is no overlap of the parallax ranges, -12%, and the radial velocity 1.7 exceeds the escape velocity 1.4, so this is not likely binary.

06h 07m 24.76s +02° 08' 31.6" P.A. 138.00 sep 12.9 mag 8.60,10.81 Sp A5 dist. 289.02 pc (942.78 l.y.)

STF 838 AB: 178; 140x: Very wide, 1 Dm pair.  There is no overlap of the parallax ranges, -93%, it is not binary.

06h 05m 08.57s +00° 51' 59.4" P.A. 329.00 sep 40.5 mag 7.13,10.38 Sp G3II dist. 387.6 pc (1264.35 l.y.)

STF 847 AB: 178; 140x: Wide near equal pair.  There is no parallax range overlap, -38%, it is not binary.

06h 07m 09.93s +00° 19' 40.0" P.A. 262.00 sep 24.3 mag 9.23,9.89 Sp K0

STF 827 AB: 178; 140x: Very wide, 1 Dm, B is faint and just direct vision.  There is no overlap of the parallax ranges, -61%, it is not binary.

06h 00m 07.83s -00° 30' 06.4" P.A. 218.00 sep 26.7 mag 7.87,11.35 Sp B9V

STF 871 AB: 178' 140x: Equal magnitude, well separated, white.  There is 48% overlap of the parallax ranges, 3,812 AU weighted separation, 2.9+2.6 Msol, so this might be binary and an orbit should be tried.

06h 11m 33.86s -00° 46' 01.6" P.A. 307.00 sep 7.3 mag 8.84,9.38 Sp A0

STF 873 AB: 178; 140x: Faint, slightly unequal, well separated.  There is no overlap of the parallax ranges, -93%, it is not binary.

06h 12m 37.71s -01° 18' 07.6" P.A. 294.00 sep 8.6 mag 9.87,10.42 Sp G

STF 836 AB: 178; 250x: Very difficult, very faint B appears with seeing within A's diffraction 2 Dm.  Surprisingly there is no parallax range overlap, -21%, it is not likely binary.

06h 02m 30.98s -02° 21' 39.8" P.A. 24.00 sep 2.0 mag 8.57,10.08 Sp A0

STF 839 AB: 178; 140x: Faint near equal pair, well separated.  There is no overlap of the parallax ranges, -22%, it is not binary.

06h 04m 52.99s -02° 43' 02.0" P.A. 289.00 sep 5.1 mag 9.72,10.07 Sp A0

STF 874 AB: 178; 140x: 1 Dm, wide.  There is no overlap of the parallax ranges, -98%, it is not binary.

06h 12m 35.15s -03° 42' 47.8" P.A. 339.00 sep 15.6 mag 8.48,11.00 Sp G

STF 850 AB: 178; 250x: Nice close pair, 2" separated, seen well with high power, 1 Dm.  There is no overlap of the parallax ranges, however, -57%, it is not binary.

06h 07m 22.05s -03° 59' 38.6" P.A. 15.00 sep 2.2 mag 9.05,9.96 Sp F2

STF 851 AB: 178; 140x: Pretty pair, near equal white stars closely separated.  There is 62% parallax range overlap, only 770 AU weighted separation, 2.1+1.8 Msol, so these are possibly binary and an orbit should be tried.

06h 08m 04.43s +03° 17' 23.7" P.A. 34.00 sep 2.9 mag 8.88,9.47 Sp A0

STF 837 AB: 178; 140x: Wide, 1 Dm.  There is no overlap of the parallax ranges, -68%, it is not binary.

06h 03m 38.86s +04° 18' 50.3" P.A. 226.00 sep 19.6 mag 8.05,10.60 Sp A0

STT 182 AB: 508; 285x: White stars, near equal, nice close split.  There is -6% parallax range overlap, not a good sign, only 156 AU weighted separation, 2.0+2.0 Msol, so there seems not much chance this is binary.  SD is giving a grade 4 orbit 1661-year period.

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.)

STF1175 AB: 508; 140x: Easy split, 2 Dm.  There is 99% overlap of the parallax ranges with 0% error, quite a remarkable result.  58 AU weighted separation, 0.8+1.1 Msol, it is probably binary.  SD showing a grade 4 orbit, 2929-year period which won't make any change these coming decades.

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.)

BU  581 AB: 508; 571x: In choppy seeing, a clean split when it stills, PA southwest, faint C a little wider in a similar PA.  There is no parallax data for the primary.  SD gives a grade 2 orbit 44.69-year period, which will make a nearly complete quarter turn by the 2040s.  One to keep an eye on.  Burnham discovered it at 0.4" with the 18.5-inch Dearborn refractor and called it "a most interesting triple." 

08h 04m 23.10s +12° 17' 23.8" P.A. 239.80 sep 0.5 mag 8.46,8.83 Sp K0V dist. 33.2 pc (108.3 l.y.)

J 420 AB: 508; 285x: Nice near equal pair, good close separation, forms a triagle with two other stars.  I find no overlap of the parallax ranges, -95%, very doubtful this is binary.  SD is giving a grade 5 orbit of 168.45-years, which seems entirely incorrect. 

08h 06m 15.16s +02° 00' 47.3" P.A. 192.70 sep 2.2 mag 11.06,11.46 dist. 114.03 pc (371.97 l.y.)

STF1196 AB: 178; 285x: Zeta-2 Cnc. Gorgeous triple.  AB is the tight pair, a nice close split, slight delta.  The C is an equal mag star well split at a near right angle PA.  There's no Gaia parallax data for the primary, but this star is well studied, and SD gives a grade 1 orbit 59.42-year period, near due north now, will be near due west by 2040.

08h 12m 12.79s +17° 38' 51.2" P.A. 0.90 sep 1.1 mag 5.30,6.25 Sp F8V dist. 25.08 pc (81.81 l.y.)

struve night

Clear night but with generally poor seeing, I uncovered the 6-inch after 9pm for some Struve observing.  One of the alignment stars as Sirius, and I immediately saw the Pup through the 6-inch.  Then I looked through the 60mm and saw it there too, a faint but hard point outside the diffraction but within the glow.  Amazing for a small scope.  I looked at some other stars through it during the night, and there were hints here and there of resolving the generally fainter pairings.  It's not my main scope but it's great to have it to have some perspective views and look at open clusters and such.  I'm enjoying it.

STF1048 AB: 152; 125x: 1 Dm, well split.  There is no overlap of the parallax ranges, -11%, it is not likely binary.

07h 14m 14.25s +04° 12' 26.5" P.A. 351.00 sep 5.9 mag 9.14,10.07 Sp A5 dist. 286.53 pc (934.66 l.y.)

STF1058 AB: 152; 125x: 1 Dm, widely split B seen with averted vision only.  There is no overlap of the parallax ranges, -91%, it is not binary.

07h 16m 49.85s +09° 21' 44.6" P.A. 278.00 sep 21.8 mag 8.54,11.60 Sp A3 dist. 450.45 pc (1469.37 l.y.)

STF1063 BC: 152; 125x: Closely separated nearly equal pair.  There is 59% overlap of the parallax ranges, 2,885 AU weighted separation, 1.8+1.7 Msol, and the radial velocity delta 0.3 is less than the escape velocity 1/5, so this is likely binary and needs an orbital solution.

07h 18m 02.98s +04° 21' 03.8" P.A. 208.00 sep 7.1 mag 10.42,10.95

STF1067 AB: 152; 125x: Equal magnitude, wide, white stars.  There is 49% overlap of the parallax ranges, 8,547 AU weighted separation, 2.7+1.8 Msol.  While the weighted separation is quite far, there is some possibility it is binary and should be followed.

07h 18m 50.80s +02° 51' 30.0" P.A. 266.00 sep 25.8 mag 8.51,10.15 Sp G0 dist. 257.07 pc (838.56 l.y.)

STF1073 AB: 152; 125x: 2 Dm, well split, white stars.  There is 67% overlap of the parallax ranges, 2,108 AU weighted separation, 2.4+1.4 Msol, and the radial velocity delta 1.8 is equal to the escape velocity -- which means it might be binary and an orbit should be tried.

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.)

STF1076 AB: 152;150x: Delicate split, slight delta magnitude, dull yellow-white stars, an attractive pair.  Unfortunately, there is no overlap of the parallax ranges, -36%, so this is not likely to be binary.

07h 21m 01.96s +04° 03' 23.6" P.A. 108.00 sep 2.9 mag 9.49,9.58 Sp A0

STF1080 AB: 152; 125x: Wide near equal.   There is -82% overlap of the parallax ranges, it is not binary.

07h 22m 15.67s +04° 28' 59.6" P.A. 220.00 sep 22.1 mag 9.97,10.41 Sp A2

STF1082 AB: 152; 125x: 1 Dm, pretty wide.  There is 46% overlap of the parallax ranges, but the weighted separation is a wide 10,294, 3.2+2.7 Msol, and the radial velocity delta is 0.0 to the escape velocity 1.0, so it might be binary and needs an orbital solution.

07h 23m 48.40s +10° 42' 05.0" P.A. 327.00 sep 20.1 mag 8.38,9.47 Sp A3 dist. 147.28 pc (480.43 l.y.)

STF1095 AB: 152; 125x: Near equal, well separated.  There is 53% parallax range overlap, 2,726 AU weighted separation, 2.2+1.9 Msol, and the radial velocity delta 0.8 is less than the escape velocity 1.6, so it might be binary and needs an orbital solution.

07h 27m 22.75s +08° 45' 14.0" P.A. 78.00 sep 10.3 mag 8.61,9.35 Sp A2 dist. 729.93 pc (2381.03 l.y.)

STF1099 AB: 152; 125x: Very fine white stars slight delta, very closely separated, pretty.  There is no overlap of the parallax ranges, -47%, it is not binary.

07h 29m 25.86s +11° 31' 44.5" P.A. 344.00 sep 3.9 mag 8.54,8.94 Sp A0

STF1101 AB: 152; 125x: Fairly faint, slight delta.  There is no overlap of the parallax ranges, -18%, it is not likely binary.

07h 28m 43.83s -13° 48' 55.7" P.A. 88.00 sep 6.5 mag 9.50,9.73 Sp A9V+F0V

STF1103 AB: 152; 125x: Very nice pair, closely separated, 1 Dm, ice blue A and light orange B.   There is 41% overlap of the parallax ranges, only 931 AU weighted separation, 2.7+1.9 Msol, so it is possibly binary and needs an orbit.

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.)

STF1104 AB: 152; 250x: Exquisitely fine pair, 1 Dm, very close split.  SOC (Sixth Orbit Catalog) provides an orbital solution 550-year period, grade 4.  There is 56% overlap of the parallax ranges, only 72 AU weighted separation, 1.0+1.4 Msol, so this likely is binary, but will only make slight shift to the east in the next few decades.

07h 29m 21.91s -14° 59' 53.4" P.A. 40.90 sep 1.8 mag 6.39,7.60 Sp F7V dist. 35.09 pc (114.46 l.y.)

STF1105 AB: 152; 125x: Very faint, just seen direct vision, near equal magnitude stars, wide.  There is 8% overlap of the parallax ranges, a very large 13,876 AU weighted separation, 1.8+1.8 Msol, and the radial velocity delta 0.1 is less than the escape velocity 0.7, so there is some chance it is binary an needs an orbit.

07h 30m 47.32s +08° 35' 00.3" P.A. 81.00 sep 20.5 mag 11.60,11.62

STF1114 AB: 152; 125x: Significant delta magnitude, well split white stars.  There is no overlap of the parallax ranges, -83%, it is not binary.

07h 33m 41.76s +09° 17' 18.0" P.A. 52.00 sep 6.4 mag 9.23,9.99 Sp G5

STF1115 AB: 152; 125x: Faint near equal stars, well separated.  There is 25% overlap of the parallax ranges, 6,906 AU weighted separation, 2.6+2.5 Msol, and the radial velocity delta 0.2 is less than the escape velocity 1.1, it is likely binary and needs an orbit.

07h 32m 33.55s -12° 52' 36.7" P.A. 139.00 sep 12.4 mag 9.48,9.70 Sp B9.5V dist. 689.66 pc (2249.67 l.y.)

STF1120 AC: 152; 125x: Nice pair, bright white A and faint B fairly wide.  There is 30% overlap of the parallax ranges, 9,508 AU weighted separation, 5.9+2.2 Msol, so there is a good chance it is binary and needs an orbit.

07h 36m 03.89s -14° 29' 33.9" P.A. 37.00 sep 19.8 mag 5.64,9.74 Sp B2Ve dist. 389.11 pc (1269.28 l.y.)

STF1121 AB: 152; 125x: Bright near equal stars, well split, in a very rich field.  A ridiculous 20 stars measured in the "system."  There is 7% overlap of the parallax ranges of these two, 3,596 AU weighted separation, 4.3+4.2 Msol, so it might yet be binary.

07h 36m 36.06s -14° 29' 03.7" P.A. 306.00 sep 7.4 mag 6.92,7.30 Sp B6V+B6V

STF1126 AB: 152; 300x: Mostly a notched elongation, near equal stars, hint of hairline split with best seeing.  SOC gives a grade 4 orbit of 1252-years.  There is no Gaia parallax data for the secondary.  With the orbit represented in SD, this pair would tighten with PA due west in the next few decades, so it's possible to monitor it.

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

STF1134 AB: 152; 125x: 1 Dm, well split.  There is 81% overlap of the parallax ranges, only 545 AU weighted separation, 1.5+0.7 Msol, but the radial velocity delta 2.9 exceeds the escape velocity 2.7 -- but only slightly.  This could be either a co-moving pair or a binary.

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.)

STF1137 AB: 152; 150x: Lovely close pair, significant delta, close split.  There is 72% overlap of the parallax ranges, 1,272 AU weighted separation, 3.4+2.5 Msol, so chances are good this is binary and needs an orbit.

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.)

STF1138 AB: 152l 125x: Bright pair, well separated.  There is 56% overlap of the parallax ranges, 1,432 AU weighted separation, 2.2+1.9 Msol, so chances are this is binary and needs an orbit.

07h 45m 29.14s -14° 41' 25.7" P.A. 341.00 sep 16.7 mag 6.00,6.73 Sp A7V+A1V dist. 77.82 pc (253.85 l.y.)

STF1141 AB: 152; 125x: The central pair in a cornucopia shaped asterism, brighter and whiter than the other stars.  1 Dm, wide.   There is no overlap of the parallax ranges, -10%, it is not likely to be binary.

07h 47m 02.47s +00° 01' 06.1" P.A. 10.00 sep 17.5 mag 8.41,9.37 Sp B9 dist. 1587.3 pc (5177.77 l.y.)

STF1143 AB: 152; 125x: Fairly wide stars, large magnitude difference.  No overlap in the parallax ranges, it is not binary.

07h 48m 03.42s +05° 24' 35.5" P.A. 152.00 sep 9.3 mag 6.60,11.00 Sp K0 dist. 254.45 pc (830.02 l.y.)

STF1146 AB: 152; 250x: 5 Pup.  Excellent pair, with seeing, 2 Dm B resolves in A's diffraction.  A is yellow-white.  SOC has a grade 4 orbit 565-year period, if it bears out it will tighten to the west by 2050.  There is no Gaia data for the secondary.

07h 47m 56.71s -12° 11' 33.8" P.A. 332.50 sep 0.9 mag 5.73,7.32 Sp dF5 dist. 28.6 pc (93.29 l.y.)

STF1149 AB: 152; 125x: 1 Dm, wide.  There is no overlap of the parallax ranges, -63%, it is not binary.

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.)

 

STF1153 AB: 152; 125x: Faint near equal, wide pair.  There is 19% overlap of the parallax ranges, 9,202 AU weighted separation, 2.1+1.9 Msol, and the radial velocity delta 0.3 is less than the escape velocity 0.9, it is likely binary and needs an orbit.

07h 52m 33.53s +12° 01' 09.6" P.A. 358.00 sep 19.6 mag 10.13,10.28 Sp F8 dist. 2439.02 pc (7956.08 l.y.)

STF1168 AB 152; 150x: B is very faint and seen averted vision only, very close to A.  Difficult.  There is no overlap of the parallax ranges, it is not binary.

07h 58m 45.18s +05° 37' 23.8" P.A. 218.00 sep 6.0 mag 6.97,14.60 Sp B9 dist. 1086.96 pc (3545.66 l.y.)