18 february 2020

Had a pretty long session last night.  There were a couple of clear nights last week, but I was sick and couldn't go out -- so I welcomed any clear night.  Seeing was middling, and transparency was too, but still worthwhile and was able to see a lot.  I had the apodizing mask on pretty much the whole time, and felt it was better overall than masking down to 8-inches -- more resolution, fainter stars.  High magnifications were washed out with haze and seeing, so most of the time kept it fairly low.  Some more cloudy weather in store the rest of this week.

I started out with Venus at 205x and a blue filter.  It was steady and in a waxing gibbous phase.  I couldn't convince myself I could see cloud shading variations, but it seemed evident. Doubles in Orion then moved further up for better seeing in Gemini.

STF 667 AB: 508 533x: Orange and yellowish-blue B, ~5", 2 delta mag.
05h 14m 41.31s -07° 04' 18.1" P.A. 316 sep 4.2 mag 7.15,8.78 Sp K2 dist. 297.62 pc (970.84 l.y.)

A 2639 AB: 508; 533x: Light white-yellow and 2 delta mag B, ~0.8"
05h 18m 03.50s +03° 41' 30.4" P.A. 277 sep 0.8 mag 8.58,9.67 Sp F5 dist. 128.53 pc (419.26 l.y.)

STT 106 AB: 508; 533x: ~4 delta mag B, wide, ivory color.
05h 22m 11.20s +05° 23' 43.1" P.A. 40 sep 9.5 mag 7.06,10.06 Sp F6V dist. 56.66 pc (184.82 l.y.)

STF 700 AB: 508; 533x: V1804 Ori. Near equal white pretty wide
05h 23m 05.54s +01° 03' 24.7" P.A. 4 sep 4.8 mag 7.69,7.89 Sp B9V+B9.5V dist. 232.02 pc (756.85 l.y.)

A 2703 AB: 508; 1067x: Definite notch at best moments, slight magnitude difference, tough
05h 24m 33.14s +09° 10' 15.1" P.A. 90 sep 0.2 mag 8.40,9.00 Sp F5 dist. 109.65 pc (357.68 l.y.)

AG 107 AB: 508; 333x: Very nice white pair, near equal, ~1.5" nicely split
06h 12m 49.60s +24° 25' 36.2" P.A. 179 sep 1.5 mag 9.56,9.82 Sp A0

STF 860 AB; 508; 333x: Blue-white A and slightly red B, wide, ~2 delta, nice
06h 11m 04.87s +24° 52' 56.3" P.A. 358 sep 5.9 mag 8.64,9.81 Sp B9 dist. 2222.22 pc (7248.88 l.y.)

TU Gem 508; 333x: Very rich orange color. I get a hint of elongation with 1067x but nothing definite, just a sense. [SkyTools included this as a super tight double star but I can't find the WDS reference.]

COU 1101 AB: 508; 333x: Just split, white, half delta mag, in a nice field near some open clusters.
06h 09m 35.99s +26° 29' 49.1" P.A. 167 sep 0.9 mag 10.82,10.82 Sp G0 dist. 183.15 pc (597.44 l.y.)

HU 452 AB: 508; 333x: Light yellow orange and light blue stars, more than half delta mag, pretty wide [not physical]
06h 19m 46.83s +22° 18' 16.6" P.A. 343 sep 2.6 mag 9.47,10.82 Sp B1.5V

TDS3753 AB: 508; 333x: Quite faint B star, very tough, ~1" and 1 delta mag.
06h 20m 30.31s +25° 05' 21.4" P.A. 78 sep 0.9 mag 11.22,11.44

J 1941 AB: 508; 333x: Faint bluish wide pair, equal, obvious. [however can't pull this up in WDS...]

AG 112 AB: 508; 333x: Very pretty equal white, wide ~4". [not physical :-( ]
06h 27m 30.03s +24° 32' 00.8" P.A. 209 sep 2.8 mag 9.83,9.88 Sp A0

BRT2351 AB: 508; 333x: White, half delta mag, wide ~5", makes a wide equilateral triangle with two other stars. [not physical]
06h 27m 36.35s +21° 53' 38.8" P.A. 39 sep 4.4 mag 10.30,10.90

J 1092 AB: 508; 333x: A bit faint, bluish, wide ~5", half delta mag.
06h 27m 51.15s +22° 51' 06.2" P.A. 226 sep 6.8 mag 11.60,12.50

WEI 12 AB: 508; 333x: Near equal white, wide, unremarkable.
06h 31m 08.66s +21° 43' 06.0" P.A. 66 sep 8.6 mag 8.63,8.70 Sp F0

TDS 254 AB: 508; 333x: Just split, noticeable delta mag, yellow-white A star.
06h 31m 46.04s +21° 24' 25.6" P.A. 288 sep 0.8 mag 10.55,10.59

STT 145 AB: 508; 333x: Bright yellow-white B and very much fainter B, just outside of A's glare, ~1.5", 3 delta mag.
06h 32m 20.69s +15° 42' 22.3" P.A. 338 sep 1.5 mag 7.30,9.93 Sp F5 dist. 198.02 pc (645.94 l.y.)

A 2452 AB: 508; 333x: Fine near equal pair, well split but close.
06h 38m 07.10s +19° 52' 38.7" P.A. 89 sep 0.9 mag 9.29,9.64 Sp G

J 353 AB: 508; 333x: White A and slightly red B, wide ~5", 2 delta mag.
06h 39m 57.85s +16° 21' 39.2" P.A. 65 sep 4.1 mag 9.40,10.30 Sp F0

BRT 1208 AB: 508; 333x: Easy wide pair, white A and a little red B, ~2 delta mag.
06h 40m 35.04s +17° 38' 26.5" P.A. 175 sep 5.1 mag 7.89,10.49 Sp F8 dist. 71.84 pc (234.34 l.y.)

KU 27 AB: 508; 333x: Easy equal white, wide, in a rich field
06h 42m 11.50s +14° 51' 29.5" P.A. 187 sep 6.9 mag 10.14,10.40 Sp G0

AG 119 AB: 508; 333x: Fine near equal white, nicely split ~1.5". There's another pair on the edge of the field, wider and brighter
06h 44m 37.54s +23° 26' 48.9" P.A. 83 sep 1.5 mag 8.94,9.13 Sp F8

POU1983 AB: 508; 333x: Faint but easily seen, near equal, well split to wide, ~2.5" , bluish due to faintness
06h 45m 16.14s +24° 12' 43.5" P.A. 315 sep 2.9 mag 11.30,11.60

BRT 146 AB: 508; 333x: Faint, 1 delta mag, ~1.5" well split
06h 45m 55.18s +24° 05' 58.0" P.A. 47 sep 3.6 mag 11.20,11.80

HO 238 AB: 508; 1067x: Barely hairline split at best moments, but conditions have a lot of haze and bloating. A half delta mag is noticeable. I can tell the star is a pair at 333x, but no where near resolvable.
06h 46m 20.91s +18° 12' 08.2" P.A. 174 sep 0.3 mag 8.95,9.09 Sp A2

COU 472 AB: 508; 333x: ! Faint but very fine pair, really pretty in the field, a little blue, half delta mag, ~1.5" Nice
06h 46m 07.21s +22° 33' 06.8" P.A. 83 sep 1.9 mag 11.40,11.35

POU2009 AB: 508; 333x: Just barely there, averted vision brightend it up, but I can still pull it out direct. Faint, bluish, wide, near equal.
06h 47m 00.33s +23° 35' 21.9" P.A. 215 sep 6.4 mag 12.60,12.70

BRT2362 AB: 508; 333x: Dare I say a glittering pair, faint but it twinkles, wide, bluish, probably parts of a plus one about twice as separated but with similar mag [not physical]
06h 47m 12.56s +17° 27' 46.5" P.A. 7 sep 3.4 mag 11.90,12.60

J 992 AB: 508; 333x: B star almost needs averted vision to see, but shows up direct when seeing stills. Wide ~5", 1 delta mag, nice pair [not physical]
06h 48m 08.72s +16° 53' 16.6" P.A. 100 sep 4 mag 11.50,12.30

WFC 46 AB: 508; 333x: Wide bluish pair about half delta mag. I see a third star with averted vision pretty close to one of these stars, ~3-4" interesting [PAL 3 BC, 11.65/13.50 5.6"]
06h 51m 02.45s +19° 14' 40.0" P.A. 297 sep 9.2 mag 11.36,11.65

PAL 3 BC: 508; 333x: Third star seen with averted vision pretty close to WFC 46 B, ~3-4"
06h 51m 01.86s +19° 14' 44.2" P.A. 295 sep 5.6 mag 11.65,13.50

POU 2065 AB: 508; 333x: Pretty faint, pulled out with averted and held there, wide, about half delta mag. [not physical]
06h 51m 25.93s +24° 25' 17.4" P.A. 175 sep 4.8 mag 12.12,12.90

POU 2072 AB: 508; 333x: Easy, white and blue, ~1.5 delta mag, pretty wide.
06h 51m 42.09s +23° 14' 36.4" P.A. 38 sep 9.8 mag 9.50,11.30

STF 991 AB: 508; 333x: Pretty off-yellow A and a little ruddy red B, nice
06h 57m 01.26s +24° 57' 27.9" P.A. 165 sep 3.8 mag 7.95,9.21 Sp A0 dist. 225.73 pc (736.33 l.y.)

A 2459 AB: 508; 1067x: Notched near equal at best moments
06h 57m 39.64s +19° 35' 04.1" P.A. 274 sep 0.4 mag 9.80,9.80 Sp A2