Monday, April 27, 2020

26 April 2020

The forecast for last night was for clear in the early evening and then poor transparency later on, and that forecast held true. Seeing was not so great, 5-6/10, better high up. The moon was low in the west when I came out at 9pm, and clear. But by 10pm it cast its glow over a haze, and then I saw bands of high clouds coming overhead. So I had to wrap up at 10:30pm. All the same there were some good pairs. I started in eastern Lynx and then moved to Leo Minor which was in pretty good position.

ES 1541 AB: 508; 333x: White and dull white pair, ~1 delta mag, wide ~8"
09h 22m 05.95s +39° 58' 00.7" P.A. 23 sep 8.2 mag 10.41,11.20

TDS6583 AB: 508; 533x: Just split with seeing, very tight, noticeable mag difference ~0.5-1, orange stars
09h 28m 23.15s +39° 54' 56.7" P.A. 71 sep 0.5 mag 10.78,10.94

STF 1374 AB: 508; 333x: Pretty orange-yellow stars, ~2 delta mag, ~3 separation
09h 41m 21.88s +38° 57' 01.9" P.A. 311.5 sep 2.81 mag 7.28,8.65 Sp G3IV dist. 51.28 pc (167.28 l.y.)

HO 369 AB: 508; 1067x: With 533x I can tell this is not single, but the elongation is too tentative. At 1067x the best I can manage is elongated notched, with seeing. Seeing and transparency are not good enough.
09h 51m 09.34s +36° 29' 20.8" P.A. 106.3 sep 0.41 mag 8.02,9.85 Sp F2 dist. 121.21 pc (395.39 l.y.)

A 2139 AB: 508; 333x: White A and blue B, ~2" separation, >2 delta mag. [not physical]
09h 52m 15.53s +40° 58' 13.4" P.A. 292 sep 2 mag 8.01,10.68 Sp A3 dist. 95.51 pc (311.55 l.y.)

HJ 2509
AB: 508; 333x: Wide light blue stars, ~1 delta mag.
09h 52m 50.16s +37° 11' 32.0" P.A. 61 sep 15.8 mag 10.89,11.70 Sp G0

HU 631 AB: 508; 533x: Bright orange-yellow A star, B is a very small, faint blue point, ~1" separation, very much fainter ~3 delta mag.
10h 03m 59.08s +32° 38' 48.8" P.A. 258 sep 0.8 mag 8.00,9.34 Sp F8 dist. 76.45 pc (249.38 l.y.)

HU 877 AB: 508; 333x: Very fine white pair, ~2 delta mag, ~2" separation, very nice.
10h 25m 32.60s +36° 46' 59.0" P.A. 250 sep 1.7 mag 9.14,10.47 Sp G0 dist. 224.22 pc (731.41 l.y.)

HU 880 AB: 508; 333x: ! Exceptionally fine split, white stars.
10h 31m 14.44s +37° 07' 27.4" P.A. 144 sep 0.9 mag 10.10,10.43 Sp F8

STF 1443
AB: 508; 333x: Wide pair, white, ~1 delta
10h 33m 17.07s +37° 40' 25.0" P.A. 161 sep 5.3 mag 9.87,10.00 Sp G0 dist. 99.8 pc (325.55 l.y.)

STF 1459 AB: 508; 333x: Wide light yellow-orange stars, ~2 delta.
10h 40m 12.46s +38° 24' 11.4" P.A. 153 sep 4.6 mag 8.34,8.85 Sp K4III dist. 2325.58 pc (7586.04 l.y.)

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