Friday, March 27, 2020

26 march 2020

I think I've solved the problem with the Argo. It turns out it is likely the hand controller connection. I was getting intermittent connections at the HC itself. I changed the cables back to my original set-up (which is a little shorter than I want) and I had a steady signal and the argo/servo worked very well, no slips. So I will try to resuscitate my argo and maybe return the one Steve lent.

I observed for about three hours last night. I had another go at Procyon B, this time being able to use eta CMi as an analogue and using the 9mmx2 Ramsden to test the scale. With Eta I could see the B star but it seemed much fainter than what I think is Procyon B's. The separation of Eta seems a little smaller than B -- but it was really difficult to tell. For me it's difficult to confirm I have Procyon B. I am not sure of the direction, separation, and the star seems so obvious and bright I have to wonder if I'm seeing it. I don't think it's a ghost image, it stays in the field and I rotate my head etc. I need to keep trying and be a little more diligent in my comparison with Eta.

Seeing was rather poor, so I used my 8-inch mask nearly the whole time. Transparency was middling too.

AG 166 AB; 203; 333x: B balrey seen with direct vision, brighted with averted vision. Pretty. ~1-2 delta mag, ~4".
09h 26m 45.80s +01° 04' 57.4" P.A. 72 sep 3.7 mag 9.10,11.10 Sp G0

BAL 2364 AB: 203; 333x: A bit more than half delta mag, wide stars. B is faint, nearly needs averted vision.
09h 29m 16.38s +03° 05' 44.0" P.A. 140 sep 8.7 mag 10.00,10.50 Sp K0

STF 1355
AB: 203; 333x: Light yellow pair, near equal, very nice, ~2"
09h 27m 16.69s +06° 13' 59.0" P.A. 355.7 sep 1.76 mag 7.71,7.76 Sp F7V dist. 54.32 pc (177.19 l.y.)

STF 1348 AB: 203; 333x: Very pretty half delta mag, ~2" pair, white. Sharp despite low declination
09h 24m 28.48s +06° 21' 01.8" P.A. 314 sep 2 mag 7.45,7.57 Sp F7V dist. 71.17 pc (232.16 l.y.)

STF 1365
AB: 203; 333x: Wide off-yellow pair, ~4", ~1.5 delta mag
09h 31m 31.26s +01° 27' 55.1" P.A. 156 sep 3.5 mag 7.38,7.98 Sp F9III dist. 95.69 pc (312.14 l.y.)

STF 1371 AB: 203; 333x: Nice yellowish A, widely separated from nealry three delta mag B
09h 35m 25.26s +03° 54' 19.4" P.A. 275 sep 8.2 mag 7.86,10.19 Sp G0 dist. 47.04 pc (153.44 l.y.)

STF 1322 AB: 203; 333x: Fine white pair, well split ~2", 1 delta mag.
09h 12m 40.15s +16° 31' 30.2" P.A. 53 sep 1.7 mag 8.32,8.71 Sp A4IV dist. 1298.7 pc (4236.36 l.y.)

BRT 155
AB: 203; 333x: Almost need averted vision to hold the B star but can manage it direct after a bit of effort. Pretty wide ~4", 2 delta mag. [Not physical. However A is Aa,Ab, 10.45/10.45 0.5", not seen.]
09h 12m 51.05s +24° 20' 29.6" P.A. 270 sep 4.6 mag 9.83,10.60

AG 163
AB: 203; 333x: A fine near equal wide pair, ~5", 10th mag. [surprisingly not physical]
09h 13m 34.97s +24° 03' 25.3" P.A. 320 sep 5.1 mag 10.21,10.70

STF 1332
AB: 203; 333x: Near equal wide pair, ~5", maybe half delta mag
09h 17m 19.21s +23° 39' 09.8" P.A. 29 sep 5.9 mag 7.87,8.12 Sp F6V+F7V dist. 71.28 pc (232.52 l.y.)

BU 591
AB: 203; 333x: ! Very nice pair. Split with seeing, noticable mag difference, hairline only.
09h 29m 36.43s -03° 07' 20.4" P.A. 29 sep 1 mag 7.79,8.87 Sp F5+A3 dist. 469.48 pc (1531.44 l.y.)

A 128
AB; 203; 333x: Fine pair, but need to wait for seeing for split. ~1" and half delta mag, white stars.
09h 26m 52.30s -03° 14' 42.0" P.A. 262 sep 1.3 mag 9.55,10.00 Sp G5

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