Tuesday, October 9, 2018

vulpecula doubles

Last night was pretty decent, with 3/5 transparency and seeing which varies from 8/10 to 7/10.  I spent some time going after doubles in Vulpecula, many of which were beyond the reach of Big Blue; hopefully I'll remember these for the 20-inch.

I also tried out my new 15x70 binoculars and OMG they are wonderful; huge field and very sharp stars.  Can't wait to finish the mirror mount for it!

BU 658: Pretty orange star; subtly out of round / pear shaped; 553x.  In a large cluster-like group of stars, around 3 degrees angular size, V-shaped, pretty in the finder.  If the stars were brighter it would be as famous as the M45. [0.6" at discovery so old Burnham didn't have too much trouble for it.]
19H 43M 55.97S +27° 08' 07.5" P.A. 284 SEP 0.3 MAG 6.72,7.92 SP B7V+G1III

STF 2584: Near equal, well split 2".  553x
19H 48M 22.40S +22° 11' 56.5" P.A. 294 SEP 2 MAG 9.14,9.20 SP F5

Cou 122: 553x & 885x, seems somewhat distorted but no clear shape.  Lost the seeing.  Not resolved.
20H 10M 28.04S +25° 02' 56.6" P.A. 355 SEP 0.6 MAG 7.24,9.91 SP A0

BU 983: Out of round but not resolved.  Bright white.  885x.  [AB attempted; AC super wide]
20H 15M 15.89S +25° 35' 31.1" P.A. 185 SEP 0.5 MAG 4.80,7.55 SP B3V

BU 985: Pale yellow and bluish B, ~6"; well separated.  885x.  [AB NOT seen, the B is too faint; I suspect what I saw was AC, HJ 1499, 10.87 mag.]
20H 18M 17.06S +25° 38' 53.7" P.A. 153 SEP 5.9 MAG 6.99,12.80 SP B2V

Cou 123.  Nice orange star, but no chance for this one.  885x [This one actually widening from 0.2" in 1966]
20H 12M 17.81S +22° 48' 28.6" P.A. 233 SEP 0.3 MAG 8.60,8.90 SP K0

Cou 124: Faint star and maybe with averted vision; but not certain at all.  885x. 
20H 22M 06.04S +22° 47' 12.8" P.A. 25 SEP 3.8 MAG 8.74,13.00 SP K0

Cou 125: Orange-yellow star, not exactly round, but not at all certain.  885x. 
20H 24M 25.79S +24° 16' 39.4" P.A. 117 SEP 0.4 MAG 7.27,8.92 SP G0

BU 441: Orange star with very faint bluish B seen with averted vision at first then can just hold.  Needs fine focus.  553x  [AB seen; Aa,Ab is POP1229, which is 0.4" separation but no magnitude given for Ab?]
20H 17M 31.54S +29° 08' 51.0" P.A. 64 SEP 6.1 MAG 6.37,10.50 SP G8III

BU 443: Is it a 4x system?  See two faint start in nearly the same PA, along with a brighter one. ['Tis]
20H 24M 09.01S +29° 00' 07.6" P.A. 151 SEP 16.4 MAG 7.31,10.97 SP A9IV

BE Vul = J 2310: Very faint field, not sure I found the correct star to look at, no splits. [12th mag B anyway, no chance]
20H 25M 33.64S +27° 22' 09.1" P.A. 323 SEP 33.5 MAG 9.86,12.10 SP A0

STF 2695:  Not seen.  [0.8" at discovery which was just about old Wilhem's limit]
20H 31M 58.19S +25° 48' 18.1" P.A. 257.4 SEP 0.44 MAG 6.58,8.75 SP AM+A2 DIST. 87.03 PC (283.89 L.Y.)

Cou 126: Hazy star appeared paired with another, but seeing was going downhill and the star was bloated and hairy, could not get focus -- then I lost the tracking.
20H 34M 12.59S +24° 49' 22.0" P.A. 91 SEP 0.9 MAG 8.75,10.93 SP A2

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