Friday, October 13, 2017

cygnus doubles

This was from 7 October, in the backyard with Big Blue, S 7/10, T 3/5.  A lot of stars covered since it was a weekend night.

STF 2422: 553x.  !! Very tight, <0.8", equal light orange, pretty faint. 
18H 57M 07.83S +26° 05' 45.1" P.A. 69 SEP 0.8 MAG 7.93,8.25 SP A2IV DIST. 156.25 PC (509.69 L.Y.)

STF 2406: 553x. !! Bright white, 3-4 delta mag, B is averted vision only and delicate, with seeing.  Wow!
18H 49M 55.77S +26° 25' 30.6" P.A. 5 SEP 4.8 MAG 7.12,11.21 SP A3V DIST. 118.34 PC (386.03 L.Y.)

STF 2371: 553x.  Half delta mag, wide light orange and blue-white pair. 
18H 42M 12.44S +27° 38' 32.3" P.A. 55 SEP 9.7 MAG 9.68,9.96 SP A0

STF 2328: 553x.  near equal, 4", light orange. [AB seen, AC too faint.]
18H 29M 27.87S +29° 55' 27.2" P.A. 71 SEP 3.8 MAG 9.00,9.50 SP A2

STF 2419: 553x.  Near equal white, 5" 
18H 55M 28.52S +29° 13' 35.8" P.A. 178 SEP 3.3 MAG 9.13,9.44 SP F2 DIST. 169.49 PC (552.88 L.Y.)

STF 2458: 553x.  1 delta mag, very wide. [AB seen, three star system AB, AC, BC]
19H 06M 52.39S +27° 45' 09.4" P.A. 225 SEP 11.4 MAG 9.71,10.39 SP A0

STF 2458: 553x.  Near equal pretty wide. [AB seen, AB, BC too wide, faint.]
19H 06M 52.39S +27° 45' 09.4" P.A. 225 SEP 11.4 MAG 9.71,10.39 SP A0

STF 2480: 553x.  2 delta mag, very wide yellow-white and blue. 
19H 11M 45.03S +26° 14' 57.5" P.A. 19 SEP 17 MAG 7.73,10.17 SP A9III DIST. 186.57 PC (608.59 L.Y.)

STF 2430: 553x. Fine near equal ~1.5" 
18H 59M 22.10S +29° 36' 11.2" P.A. 187 SEP 1.5 MAG 9.07,9.18 SP G0

STF 2466: 553x.  Near equal 3" light orange [AB seen, AC too faint]
19H 07M 53.72S +29° 48' 02.5" P.A. 104 SEP 2.4 MAG 8.57,9.02 SP A0 DIST. 684.93 PC (2234.24 L.Y.) 

STF 2333: 553x. 1 delta mag, wide. [4 stars in system, AB seen, rest faint.]
18H 31M 06.94S +32° 14' 43.4" P.A. 333 SEP 6.4 MAG 7.82,8.57 SP B9IV DIST. 216.92 PC (707.59 L.Y.)

STF 2358: 553x.  !! Faint near equal <2", another brighter / wider pair nearby.  Nice! 
18H 38M 35.04S +30° 43' 20.1" P.A. 223 SEP 2.5 MAG 9.81,10.19 SP F8

STF 2441: 2 delta mag, ~10" [AB seen, AC too wide]
19H 02M 41.26S +31° 23' 58.5" P.A. 264 SEP 6.2 MAG 7.85,9.78 SP A3 DIST. 147.06 PC (479.71 L.Y.)

STF 2454: 553x.  Fine yellowish pair, ~1.5" 
19H 06M 09.37S +30° 26' 18.8" P.A. 290.3 SEP 1.37 MAG 8.34,9.72 SP K0 DIST. 77.34 PC (252.28 L.Y.)

STF 2467: 553x.  Near equal pretty wide, yellowish 
19H 08M 05.79S +30° 47' 34.5" P.A. 263 SEP 10.4 MAG 10.13,10.33 SP F5

STF 2483: 553x.  White, 1 delta mag, wide. [AB seen, but several other stars in a complicated system]
19H 12M 23.60S +30° 20' 51.9" P.A. 318 SEP 10 MAG 7.97,9.09 SP B9IV DIST. 515.46 PC (1681.43 L.Y.)

HO 102: 553x. Not seen, too faint. 
19H 16M 43.49S +33° 07' 39.3" P.A. 344 SEP 87.1 MAG 7.21,13.04 SP B5V DIST. 497.51 PC (1622.88 L.Y.)

STT 366: 553x.  Multiple, too much to describe. 

BU 1206: 553x.  !! Very much fainter B, 2", 3-4 delta mag.  Pinpoint when seeing stills. 
20H 19M 07.08S +36° 45' 07.6" P.A. 348 SEP 1.7 MAG 7.53,10.70 SP F4III

HO 125: 553x.  Nice orange carbon star.  I do see some faint stars about, but none close enough to be the pair. 
20H 18M 57.54S +39° 00' 15.1" P.A. 196 SEP 3.5 MAG 6.61,10.60 SP K4II DIST. 1492.54 PC (4868.67 L.Y.)

STT 401: 553x.  Orange and faintly bluish, 1 delta mag, wide 10" 
20H 12M 13.15S +38° 26' 35.1" P.A. 69 SEP 12.8 MAG 7.32,10.62 SP G8II

WEI 35: 553x.  Double-double!  Ah!  Near equal 3", and closeby a wider pair, 5", 1 delta mag. [AB is first, CD might be second?  4 stars visible in system]
20H 29M 13.54S +37° 30' 45.8" P.A. 213 SEP 4.1 MAG 8.35,8.81 SP F5 DIST. 305.81 PC (997.55 L.Y.)

STTA 205.  Wide 1 delta mag white. 
20H 19M 44.88S +41° 08' 18.7" P.A. 320 SEP 46.2 MAG 7.19,8.91 SP B9V

STF 2666: 553x.  Seems split in the finder, but A has its own B.  White A, slightly red B, 2 delta mag, 4-5"  [AB seen, 4 stars in system]
20H 18M 06.99S +40° 43' 55.6" P.A. 246 SEP 2.7 MAG 5.96,8.24 SP O9V+B1.5V DIST. 595.24 PC (1941.67 L.Y.)

STF 2663: 553x.  Yellow and blue, near equal, wide 5".  [AB seen, 5 stars in system]
20H 16M 48.53S +39° 41' 50.4" P.A. 324 SEP 5.4 MAG 8.20,8.66 SP A0II DIST. 2702.7 PC (8816.21 L.Y.)

Sadr, Gamma Cygni.  Noticeably dark around Sadr in the finder.  Milky Way stream all around it -- in a better sky it would show nicely.

D    22B,"D 22: 553x.  Yellow and yellow-orange, 3" 1 delta mag, among a pentagram of stars. [AB seen, 4 stars in group]
20H 25M 31.16S +40° 05' 50.8" P.A. 162 SEP 2.9 MAG 8.15,9.48 SP F8V 

STT 403: 553x.  Dramatic near equal white, just split, 1", with a third in the system 2x fainter and wide separation [Indeed a triple, as described.]
20H 14M 21.53S +42° 06' 15.6" P.A. 172 SEP 0.9 MAG 7.31,7.64 SP B9IV-V DIST. 581.4 PC (1896.53 L.Y.)

STF 2376: 553x.  Triple?  1 delta mag between each, forms a triangle. [4x]
18H 43M 42.26S +30° 24' 16.9" P.A. 62 SEP 22.2 MAG 8.66,9.31 SP A0 DIST. 202.84 PC (661.66 L.Y.)

HO 440: 553x.  Bright white and very faint, very wide B. 
18H 49M 52.92S +32° 33' 03.9" P.A. 175 SEP 18 MAG 5.25,12.70 SP A3V DIST. 70.97 PC (231.5 L.Y.)

HJ 1352: 553x. 2 delta mag, wide. 
18H 50M 03.28S +29° 48' 55.0" P.A. 251 SEP 13.4 MAG 7.62,11.30 SP A0III DIST. 338.98 PC (1105.75 L.Y.)

ES 2422: 553x.  Orange with very faint, very wide, averted vision. 
18H 56M 51.24S +31° 12' 03.6" P.A. 177 SEP 5.5 MAG 8.96,12.00 SP K5

HJ 1525: 553x  Near equal wide, 8", white pair. [AB see, AC too faint]
20H 29M 54.13S +40° 22' 01.2" P.A. 234 SEP 9.1 MAG 9.13,9.58 SP A2

No comments:

Post a Comment