A very productive night with the 6-inch. Seeing was quite good, nearly perfect at higher elevations. A bit of typical marine haze. Cold, in the upper 30s, and light dew. I observed from around 7:00 and caught the beginnings of an Io shadow transit on Jupiter, and Venus and Saturn close to each other (through branches of a neighbor's tree), and Mars, with a polar ice cap and dark features visible. I ended the night around 11pm with a bino-viewed look at the moon. All around a great night.
05h 10m 03.87s +27° 33' 23.4" P.A. 353.00 sep 314.6 mag 7.02,9.27 Sp F5+G5 dist. 39.67 pc (129.4 l.y.)
HU 1107 AB: 152; 250x: Difficult, B is very much fainter, but steady on white A's diffraction ring. -32% PRO, it is not binary.
BU 189 AB: 152; 125x: 3 Dm, well separated B with averted vision only. 26% PRO, 1,407 AU WS, 3.8+1.6 Msol, but RVD 3.3 > EV 2.6, it is not binary.
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.)
BU 317 AB: 152; 200x: Reddish A, wide B with averted vision only. 25% PRO, 2,044 AU WS, 2.9+1.4 Msol, but RVD 3.5 > EV 1.9, it is not binary.
05h 13m 55.82s -22° 59' 18.6" P.A. 13.00 sep 8.7 mag 7.54,10.27 Sp K0III dist. 243.9 pc (795.6 l.y.)
BU 327 AB: 152; 250x: Unequal hairline split, with seeing and high power only. No Gaia data for the companion. Given how close it is, an orbit should be tried.
06h 58m 28.16s -03° 01' 25.4" P.A. 107.00 sep 0.6 mag 7.80,8.15 Sp B0.5IV dist. 515.46 pc (1681.43 l.y.)
BU 560 AB: 152; 200x: Beautiful close unequal pair. -7% PRO, it is not likely binary.
05h 47m 24.87s +29° 39' 26.9" P.A. 124.00 sep 1.7 mag 7.77,8.24 Sp F8 dist. 79.55 pc (259.49 l.y.)
BU 573 AB: 152; 250x: Hairline split with seeing, near equal, white. No Gaia data for the companion. SOC grade 4 orbit, 855-year period, if correct it will drastically tighten over the next 20 years.
07h 01m 49.89s -10° 52' 56.3" P.A. 311.00 sep 0.8 mag 7.16,7.83 Sp F8 dist. 118.34 pc (386.03 l.y.)
BUP 79 AC: 152; 125x: 5 Dm superwide, C on edge of direct vision. -80% PRO, it is not binary. Nor is AB, -73% PRO.
05h 27m 38.89s +34° 28' 33.6" P.A. 72.00 sep 61.8 mag 5.22,10.87 Sp K3IIICN+2 dist. 138.89 pc (453.06 l.y.)
COO 31 AB: 152; 125x: 2 Dm, B just seen direct vision, very wide. 19% PRO, 2,419 AU WS, 2.1+1.1 Msol, but the RVD 2.3 > EV 1.5, it is not binary.
05h 23m 38.15s -22° 18' 29.2" P.A. 284.00 sep 17.4 mag 7.45,10.22 Sp A7V dist. 684.93 pc (2234.24 l.y.)
CPO 7 AB: 152; 250x: Adhara. As challenging as nearby Sirus B. B is faint but well separated from A's dancing diffraction. No Gaia data.
06h 58m 37.55s -28° 58' 19.5" P.A. 162.00 sep 7.9 mag 1.50,7.50 Sp B2II dist. 124.22 pc (405.21 l.y.)
DA 3 AB: 152; 250x: Exquisitely close hairline split, 1 Dm. 1% PRO 2.5% error, 337 AU WS, 3.4+2.7 Msol, it probably is not binary.
05h 35m 54.08s -05° 37' 42.4" P.A. 173.00 sep 0.9 mag 7.33,8.54 Sp B6Ve
DA 4 AB: 152; 250x: Very challenging, close separation, B appears as a steady brightening in A's diffraction. No Gaia parallax data for B. It might be too far to be binary, but an orbit could be tried.
05h 35m 23.16s -04° 50' 18.1" P.A. 202.00 sep 1.2 mag 4.61,7.50 Sp B1V dist. 271 pc (884 l.y.)
ENG 22 AS: 152; 125x: Superwide 3 Dm. Part of BUP 82. 19% PRO, 1,203 AU WS, 0.8+0.4 Msol, but RVD 2.3 > EV 1.4, it is not binary.
05h 41m 20.33s +53° 28' 51.7" P.A. 72.00 sep 97.9 mag 6.29,9.84 Sp K1V+M0.5V dist. 12.28 pc (40.06 l.y.)
H 6 40 AB: 152; 125x: Superwide, 3 Dm. 26% PRO, 864 AU WS, 1.3+0.7 Msol, and the RVD 2.1 is =/> EV 2.0. There is a chance it's binary, an orbit should be tried.
05h 44m 27.79s -22° 26' 54.2" P.A. 349.00 sep 95.5 mag 3.64,6.28 Sp F6V+K2V dist. 8.93 pc (29.13 l.y.)
HDS 713 AB: 152; 200x: Faint unequal, very wide. 46% PRO, 4,411 AU WS, 1.3+1.3 Msol, and RVD 0.1 < EV 1.0, it is likely binary and needs an orbit.
05h 26m 05.38s +22° 49' 33.6" P.A. 129.00 sep 24.0 mag 10.00,10.19 Sp G0 dist. 362.32 pc (1181.89 l.y.)
HJ 3750 AB: 152; 200x: Pretty, bright, cream-colored A, light orange B, close but good separation, 4 Dm. 86% PRO, 513 AU WS, 3.7+1.6 Msol, it is probably binary and needs an orbit tried.
05h 20m 26.91s -21° 14' 23.1" P.A. 279.00 sep 4.0 mag 4.72,8.45 Sp A0Vv dist. 127.55 pc (416.07 l.y.)
HJ 3752 AB: 152; 200x: Lovely 3 Dm, good separation. -15% PRO, it is not likely binary.
05h 21m 46.27s -24° 46' 22.6" P.A. 91.00 sep 3.5 mag 5.44,6.58 Sp G0 dist. 107.87 pc (351.87 l.y.)
HJ 3770 AB: 152; 125x: Well separated B barely seen with averted vision. 57% PRO, 218 AU WS, 1.2+0.6 Msol, and RVD 2.6 < EV 3.8, it is likely binary and needs an orbit.
05h 33m 30.36s -24° 20' 16.6" P.A. 24.00 sep 4.2 mag 7.79,11.35 Sp F7V dist. 50.58 pc (164.99 l.y.)
HJ 3788 AB: 152; 125x: 2 Dm, superwide. -33% PRO, and RVD 1.7 > EV 1.5, it is not binary.
05h 41m 16.85s -26° 20' 48.0" P.A. 155.00 sep 25.7 mag 7.60,9.20 Sp F3/5V dist. 68.26 pc (222.66 l.y.)
HJ 3798 AB: 152; 125x: Unequal very wide. -77% PRO, they are not binary.
05h 47m 12.85s -24° 29' 44.1" P.A. 70.00 sep 15.3 mag 8.19,8.76 Sp F2V+F5IV
HJ 3914 AB: 152; 125x: Wide, 3 Dm B with averted vision only. 5% PRO, 2,562 AU WS, 2.8+1.0 Msol, there is a small possibility it's binary and an orbit can be tried.
07h 02m 08.61s -23° 29' 49.3" P.A. 314.00 sep 11.0 mag 7.52,11.00 Sp G8III/IV
HO 342 AB: 152; 250x: Unequal 1 Dm, close separation. -11% PRO, it is not likely binary.
07h 02m 50.54s +13° 05' 21.7" P.A. 89.00 sep 1.2 mag 7.99,8.71 Sp F5 dist. 212.31 pc (692.56 l.y.)
HU 112 AB: 152; 250x: Subtlety notched elongation, unequal. Needs more aperture to resolve. No Gaia data. This is an insanely tight, sub-arcsecond triple! Or, quadruple, as there is a spectroscopic Ba,Bb pair. The B and C pairs have nearly identical position angles and separations, so likely appear overlapped. I need to observe this with the 20-inch.
HU 112 AB: 07h 01m 49.51s -11° 18' 03.3" P.A. 196.00 sep 0.6 mag 7.03,7.70 Sp B2V+B9V dist. 444.44 pc (1449.76 l.y.)
SAO 3 AC: 07h 01m 49.51s -11° 18' 03.3" P.A. 198.00 sep 0.7 mag 7.03,7.80 Sp B2V+B9V dist. 444.44 pc (1449.76 l.y.)
HU 1107 AB: 152; 250x: Difficult, B is very much fainter, but steady on white A's diffraction ring. -32% PRO, it is not binary.
05h 37m 15.06s +64° 09' 16.9" P.A. 57.00 sep 1.5 mag 6.18,9.81 Sp A0V dist. 111.23 pc (362.83 l.y.)
I 183 AB: 152; 200x: Not very difficult, 4 Dm, well separated, seen at 125x, better view with 200x. -81% PRO, it is not binary.
07h 00m 47.55s -25° 38' 37.6" P.A. 139.00 sep 3.9 mag 7.41,9.93 Sp B2IV dist. 515.46 pc (1681.43 l.y.)
J 36 AB: 152; 250x: Beautiful, faint B close split. -3% PRO, only 131 AU WS, 1.5+1.0 Msol -- it is probably not binary, but an orbit could be tried.
05h 48m 15.09s +03° 53' 56.2" P.A. 95.00 sep 1.4 mag 7.83,9.56 Sp F8
S 476 AB: 152; 125x: Wide, slightly unequal. -13% PRO, it is not binary.
05h 19m 17.44s -18° 31' 11.8" P.A. 18.00 sep 39.3 mag 6.31,6.48 Sp B3V+Ap dist. 263.16 pc (858.43 l.y.)
S 541 AB: 152; 125x: 1 Dm, super wide. 6% PRO, 5,983 AU WS, 3.1+2.3 Msol, RVD 1.4 => EV 1.3. The numbers are marginal, but there is some chance it is binary, an orbit can be tried.
06h 56m 34.17s -22° 38' 41.5" P.A. 44.00 sep 23.3 mag 7.48,8.53 Sp K0III+F dist. 290.7 pc (948.26 l.y.)
STF 645 A-BC: 152; 125x: White and well separated 2 Dm B. No Gaia data for B, but it's BC that's the prize, BU 1047 SOC grade 3 orbit.
05h 09m 45.06s +28° 01' 50.2" P.A. 29.00 sep 11.3 mag 6.04,9.11 Sp A5m dist. 52.6 pc (171.58 l.y.)
STF 648: AB: 152; 125x: Unequal, well separated, light orange. 14% PRO, 211 AU WS, 1.1+0.9 Msol, and RVD 0.7 < EV 4.0, it is likely binary and needs an orbit.
STF 676 AB: 152; 125x: Close split, 1 Dm. -30% PRO, it is not binary.
05h 24m 47.16s +64° 43' 52.7" P.A. 268.00 sep 1.4 mag 8.13,8.92 Sp F8 dist. 204.08 pc (665.71 l.y.)
STF 677 AB: 152; 250x: Very closely split, 1 Dm, nice pair. -9% PRO, it is not likely binary, in spite of the SOC grade 4 orbit 430-year period.
05h 24m 44.29s +63° 23' 11.1" P.A. 108.00 sep 1.2 mag 7.86,8.50 Sp G0 dist. 47.15 pc (153.8 l.y.)
STF 684 AB: 152; 250x: Very close separation, 2 Dm. -11% PRO, it is not likely binary.
05h 22m 11.04s +45° 04' 53.9" P.A. 141.00 sep 1.5 mag 7.72,9.34 Sp B8III dist. 5882.35 pc (19188.23 l.y.)
STF 698 AB: 152; 125x: 1 Dm, superwide. -92% PRO, it is not binary.
05h 25m 12.94s +34° 51' 18.6" P.A. 348.00 sep 31.4 mag 6.65,8.33 Sp K2III dist. 5263.16 pc (17168.43 l.y.)
STF 699 AB: 152; 125x: White, 1 Dm, wide, in a rich field. -4% PRO with 4% error, 1,804 AU WS, 2.2+1.9 Msol, and a 0.09 PMV. It's possible to be binary, an orbit could be tried.
05h 25m 38.50s +38° 02' 41.1" P.A. 345.00 sep 8.9 mag 7.90,8.61 Sp A1V dist. 308.64 pc (1006.78 l.y.)
STF 711 AB: 152; 125x: 2 Dm, wide. -44% PRO, it is not binary (in spite of SOC grade 5 orbit).
05h 31m 28.89s +54° 39' 15.8" P.A. 226.00 sep 7.3 mag 7.78,9.67 Sp G1+K2 dist. 39.31 pc (128.23 l.y.)
STF 718 AB: 152; 125x: Near equal white stars, well separated, in a rich field. 17% PRO, 847 AU WS, 1.8+1.8 Msol, and RVD 0.1 < EV 2.8, it is likely binary and needs an orbit. It is very close to us, so the separation is apparently wide for us to see easily.
05h 32m 20.59s +49° 23' 36.5" P.A. 72.00 sep 7.8 mag 7.47,7.54 Sp F5 dist. 82.58 pc (269.38 l.y.)
STF 719 AB: 152; 250x: Lovely closely split 2 Dm pair, with a similar magnitude C further out with similar position angle. -29% it is not binary (nor is the C pair).
05h 30m 06.14s +29° 32' 55.3" P.A. 336.00 sep 1.4 mag 7.50,8.76 Sp G5 dist. 169.78 pc (553.82 l.y.)
STF 734 AB: 152; 250x: Excellent close split, >1 Dm. -28% PRO, it is not binary.
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.)
STF 736 AB: 152; 250x: Lovely close pair, 1 Dm. 47% PRO, 112 AU WS, 1.2+0.9 Msol, it is likely binary and needs an orbit.
05h 37m 07.20s +41° 49' 41.7" sep 2.7 mag 7.45,8.57 Sp F8 dist. 44.19 pc (144.15 l.y.)
STF 768 AB: 152; 125x: 3 Dm wide pair. 12% PRO, 9,636 AU WS, 3.9+2.0, there is some chance it is binary, and orbit can be tried.
05h 43m 17.17s +41° 07' 22.4" P.A. 221.00 sep 18.8 mag 7.45,10.32 Sp B8 dist. 82.37 pc (268.69 l.y.)
STF 973 AB: 152; 125x: Slightly unequal, wide. -23% PRO, it is not binary.
07h 04m 03.92s +75° 13' 39.1" P.A. 32.00 sep 12.8 mag 7.22,8.19 Sp G0 dist. 35.71 pc (116.49 l.y.)
STF 997 AB: 152; 200x: Light orange A and blue B, well separated. 86% PRO, 832 AU WS, 5.7+3.0 Msol, it is likely binary and an orbit is needed.
06h 56m 06.59s -14° 02' 33.6" P.A. 343.00 sep 2.9 mag 5.27,7.14 Sp G5III+A2 dist. 381.68 pc (1245.04 l.y.)
STT 106 AB: 152; 125x: White, 2 Dm wide pair. 7% PRO, 581 AU WS, 1.5+0.7 Msol, but RVD 3.0 > EV 2.6, it is not binary.
05h 22m 11.20s +05° 23' 43.1" P.A. 40.00 sep 9.5 mag 7.06,10.06 Sp F6V dist. 56.66 pc (184.82 l.y.)
STT 108 AB: 152; 200x: Very much fainter B nicely split from white A. -7% PRO, it is not binary.
05h 29m 19.14s +18° 21' 56.5" P.A. 131.00 sep 3.2 mag 6.77,10.42 Sp A2 dist. 186.92 pc (609.73 l.y.)
STT 112 AB: 152; 250x: ! Unequal hairline split, great pair. -41% PRO, it is not binary.
05h 39m 54.31s +37° 57' 28.8" P.A. 46.00 sep 0.9 mag 7.92,8.21 Sp B9
STT 117 AB: 152; 125x: Light yellow-orange A, wide and very faint B plainly seen. 47% PRO, 3,691 AU WS, 3.9+1.7 Msol, but RVD 4.3 > EV 1.6, it is not binary.
05h 48m 11.46s +30° 32' 06.7" P.A. 31.00 sep 11.7 mag 7.11,10.01 Sp K5 dist. 284.09 pc (926.7 l.y.)
STT 159 AB: 152; 250x: Light yellow, notched snowman with a small head. No Gaia data for B. SOC grade 3 orbit, 262-year period,
06h 57m 16.60s +58° 25' 23.0" P.A. 237.00 sep 0.7 mag 4.45,5.50 Sp G8III+F8V dist. 54.67 pc (178.33 l.y.)
STTA 61 AB: 152; 125x: 2 Dm, supewrwide. 66% PRO, 3,628 AU WS, 1.5+1.0, but RVD 1.7 > EV 1.1, it is not binary.
05h 09m 43.70s +29° 47' 55.1" P.A. 245.00 sep 68.4 mag 6.72,8.49 Sp F8V dist. 52.97 pc (172.79 l.y.)
STTA 63 AB: 152; 125x: More than 1 Dm, superwide. -95% PRO, it is not binary.
05h 30m 45.08s +39° 49' 33.3" P.A. 277.00 sep 75.2 mag 6.49,7.69 Sp G9III dist. 217.86 pc (710.66 l.y.)
WNC 2 A-BC: White, near equal, well separated. No Gaia parallax data for the secondary. SOC Grade 5 orbit 923 year period. BC is A 847, 7.6/7.8 0.2" 47-year period SOC grade 2.
05h 23m 51.32s -00° 51' 59.8" P.A. 159.00 sep 3.1 mag 6.87,6.96 Sp F6V+F5V dist. 55.71 pc (181.73 l.y.)
No comments:
Post a Comment