Tuesday, August 13, 2019

it's alive! (roboscope)

Last night I hooked up a 25' long serial cable to the ServoCAT and was able to use SkyTools to control the telescope, while on my ladder with my laptop on the stand. This is my intended use case and I was so very pleased it worked! I was able to pick targets off a list (stars within a constellation sorted by RA) and usually keep the same ladder position, slew star to star, make and log my observation...

There's only a few minor issues, but all solvable. I have a lot of lag in my altitude up button on the hand controller; I may need to check my balance and maybe switch to a single super long cable. Pointing accuracy is not super great (meaning lands within the field of a high power eyepiece); I can redo AutoCAL and do a TPAS Super Align -- will need to create a list for it. The computer sits precariously on the stand, so I need to secure it some how; and it ran out of battery after a couple hours. Also the computer runs very slowly, and the list auto refresh (even at 5 minutes) is really annoying, I want to turn it off. But overall I'm very pleased, I think I will be able to observe a lot of interesting stuff.

Conditions last night were worse than predicted. Seeing was middling, and there was a rather thick marine haze in the air, reducing the number of faint stars I could go after. My list generated to 14th magnitude for some pairs and I skipped over those and stayed 11th magnitude or brighter. I observed until about midnight -- I was prepared to stay longer but seeing was too poor.

WDS J18429+0545A / HD 172979: 333x, 8": pair of 9th mag stars, well split, half delta mag. Used for alignment
18h43m51.2s;+05°45'50" [not in Stelle Doppie]

STF 237 AB: 333x 20" First robo scope observation! Near equal obvious split. seeing not all that great, full aperture. [B star is 0.1" pair equal mag]
18h 45m 28.36s +05° 30' 00.4" P.A. 121 sep 2.5 mag 6.34,6.73 Sp A1V dist. 188.68 pc (615.47 l.y.)

STT 360 AB: 8" 333x: lovely orange stars, two delta mag, used the 8 inch mask to clean up the image, very nice
18h 38m 39.84s +04° 51' 17.3" P.A. 282 sep 1.7 mag 6.86,9.14 Sp K2III dist. 142.25 pc (464.02 l.y.)

A 355 AB 8" 667x: tough for tonight's conditions, poor transparency and a nearly full moon. very faint star with very close companion like two smudges
18h 36m 19.32s +05° 15' 37.5" P.A. 143 sep 1.3 mag 9.40,10.93 Sp A0

BU 1328 AB First to find with the help of the on board chart; the FOV seems pretty accurate. Two orange stars, 1 delta mag, well split. 667x 8"
18h 40m 57.82s +03° 01' 36.4" P.A. 282 sep 2.1 mag 9.01,9.95 Sp K2

STF 2324 AB 8" 667x nice near center of field for once. very well split white stars, half delta mag
18h 30m 58.45s +01° 23' 30.8" P.A. 149 sep 2.4 mag 9.04,9.37 Sp B8 dist. 2631.58 pc (8584.21 l.y.)

STF 2347 AB: 8" 667x. orange and light blue, pretty without diffraction, wide separation, 2 delta mag. [not physical]
18h 37m 56.63s -00° 23' 09.1" P.A. 259 sep 3.4 mag 8.07,9.75 Sp B2V

A 2193 AB: 8" 667x/ Pair of white stars, half delta mag. found very quickly slew to. Nice pair. Very clean split.
18h 55m 51.23s +03° 22' 30.8" P.A. 357 sep 1 mag 8.77,9.19 Sp F0

RST 5450 AB: 8" 667x At very best moments, which are fleeting, I see very tight but nicely split pair, 1 delta mag, both faint. Resolves from a haze. Nice.
18h 32m 32.53s +00° 36' 06.9" P.A. 252 sep 0.8 mag 10.26,10.31 Sp K2

STF 2379 AB AC: 5 Aql8" 667x, but that's overkill. Wide triple.
18h 46m 28.58s -00° 57' 41.9" P.A. 122 sep 12.6 mag 5.88,7.02 Sp A2V

STF 2402 AB: 8" 667x Lovely near equal, tight but well split. Forms a perfect triangle with two other stars
18h 49m 44.14s +10° 40' 35.4" P.A. 208 sep 1.5 mag 8.94,9.27 Sp A3

BU 265 AB: 8" 667x Very tremulous B star appears with seeing, surprisingly difficult for the mag, maybe because so close.
18h 50m 14.94s +11° 31' 21.5" P.A. 231 sep 1.4 mag 7.37,9.24 Sp A1V+G:III dist. 520.83 pc (1698.95 l.y.)

STF 2404 AB 8" 667x: Light orange and light blue, pretty. seeing is surprisingly bad even with mask
18h 50m 45.55s +10° 58' 35.2" P.A. 182 sep 3.5 mag 6.92,7.77 Sp K5III+K3 dist. 386.1 pc (1259.46 l.y.)

STF 2408: AB 8" 667x With seeing, 1.5 delta mag well split pair, nice. [not physical]
18h 51m 58.05s +10° 46' 48.9" P.A. 91 sep 2.3 mag 8.47,9.38 Sp A0 dist. 699.3 pc (2281.12 l.y.)

HU 199 AB: 8" 667x: Wow! With seeing very tight very faint but split near equal. very cool.
18h 52m 07.48s +11° 47' 54.3" P.A. 345 sep 0.9 mag 9.05,9.54 Sp F5 dist. 214.59 pc (699.99 l.y.)

HJ 5505: 8" 667x: near equal wide white stars.
18h 57m 42.01s +09° 42' 01.8" P.A. 123 sep 14.5 mag 9.41,9.46 Sp G0 dist. 53.3 pc (173.86 l.y.)

TDT 1106 AB; 8" 667x: Marginal, maybe a smear but too tentative.
18h 52m 50.94s +08° 10' 34.2" P.A. 257 sep 0.5 mag 10.59,10.87

HO 91 AB = FF Aql: 20" 667x: Yellow light star but no pair seen with mask, but the pair is obvious when I used full aperture, sitting just above the primary, well split, 4 delta mag.
18h 58m 14.75s +17° 21' 39.4" P.A. 146 sep 7 mag 5.44,10.12 Sp F8II dist. 473.93 pc (1545.96 l.y.)

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