Sunday, October 8, 2017

cygnus doubles

from home, big blue, s: 7/10, t 3/4:

UV Cyg = A 598: 553x.  !! Orange-red with very much fainter blue 1", 1 delta mag.  Seeing must still -- and it does.  A a perfect round disk the color of the setting sun.  Very special.  [AB seen, AC 50" did not notice]
19H 36M 29.82S +41° 24' 08.6" P.A. 193 SEP 1 MAG 9.91,10.15 SP F5

STF 2588: 553x.  Near equal white, pretty wide separation. [A,BC seen; BC 0.2" might see out of round disk in the 20" if I remember to try it...]
19H 49M 00.90S +44° 22' 45.1" P.A. 159 SEP 9.8 MAG 7.74,8.12 SP B8III DIST. 854.7 PC (2788.03 L.Y.)

STT 373: 553x.  White and slightly bluish 2-3 delta mag, 2" [hmm.. not seen, the AB is a very wide separation.]

STF 2496: 553x.  !! Very much fainter B, a pin prick when seeing stills.  3 delta mag, 2" [AB seen, AC super wide sep]
19H 15M 19.18S +50° 04' 16.0" P.A. 80 SEP 2.1 MAG 6.46,10.00 SP G8III DIST. 134.59 PC (439.03 L.Y.)

STF 2511: 553x.  Orange and very much fainter star could be B, wide separation, 3 delta mag, 10" [AB seen, AC very wide sep.]
19H 20M 31.45S +50° 20' 24.5" P.A. 50 SEP 7.6 MAG 7.51,11.10 SP K5 DIST. 293.26 PC (956.61 L.Y.)

STF 2579: 553x. Very bright white with ruddy B, ~4", 4 delta mag.  Nice! [7 star system, I saw AB; rest of stars too faint for home.]
19H 44M 58.44S +45° 07' 50.5" P.A. 216.6 SEP 2.74 MAG 2.89,6.27 SP B9.5IV DIST. 50.58 PC (164.99 L.Y.)

STF 2611: 553x.  Equal yellow, wide.
19H 58M 51.90S +47° 21' 48.2" P.A. 208 SEP 5.4 MAG 8.47,8.48 SP K0 DIST. 294.99 PC (962.26 L.Y.)

Theta Cyg = BU 1131: 553x.  Not seen B, but wish I could...
19H 36M 26.53S +50° 13' 15.9" P.A. 71 SEP 2.3 MAG 4.50,12.90 SP F4V DIST. 18.34 PC (59.83 L.Y.)

HJ 1428: 553x.  Interesting string of 6 stars, with 7th at right angle from the central bright star in the string, which is orange.

STFA 46 = 16 Cyg: 553x. Wide equal orange-yellow, split in finder 

ES 502: 553x.  Yellow with pretty faint wide pair, 1 delta mag. 
20H 13M 07.26S +49° 11' 18.7" P.A. 221 SEP 13.7 MAG 8.01,10.89 SP B9.5V DIST. 285.71 PC (931.99 L.Y.)

STT 182: 553x.  Moderately bright with much fainter wide and close stars, and another further out.  Forms a right triangle. [4 star system, all of them seen] 

STF 2486: 553x.  Near equal yellow pair.  [AB seen, 4 stars in all, wide and faint]
19H 12M 05.03S +49° 51' 20.7" P.A. 204 SEP 7.21 MAG 6.54,6.67 SP G3V+G3V DIST. 24.45 PC (79.76 L.Y.)

STF 2605: 553x.  Yellow and ruddy, fairly wide, ~4" 2 delta mag.

BLL 43: 553x.  Intense orange, very pretty to look at.  Orange in the finder.  But no pair noticed -- too faint?
19H 57M 12.51S +44° 15' 40.2" P.A. 17 SEP 58.5 MAG 8.57,12.11 SP CII DIST. 371.75 PC (1212.65 L.Y.)

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