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Current system
20264+5638
STF 2687
HD 195066


Nearby doubles
20' : 20265+5619
BU 433AB

27' : 20289+5655
STI2535AB

27' : 20258+5612
TDT2262

33' : 20298+5654
TDT2322

35' : 20300+5621
STI2537

37' : 20305+5651
TDT2330

40' : 20243+5602
TDT2239

43' : 20312+5653
RAO 22

43' : 20295+5604
KUI 97

47' : 20280+5723
MLR 641

47' : 20208+5639
STI2520

50' : 20251+5727
MLB 84

51' : 20315+5611
HJ 1540AB

53' : 20312+5714
A 872

55' : 20256+5544
KPP4196

55' : 20217+5717
TDT2204

64' : 20330+5712
A 739

66' : 20194+5607
STF2669AB

66' : 20337+5616
HJ 1545

66' : 20248+5534
TDS1071

67' : 20342+5622
HJ 1546

71' : 20343+5707
STI2541

73' : 20231+5745
STI2523

73' : 20260+5526
STI2527

74' : 20175+5646
STI2517

74' : 20246+5527
MLR 588



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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20264+5638 STF 2687 (HD 195066)

 
 
20h 26m 23.47s +56° 38' 19.3" P.A. 118.00 sep 26.7 mag 6.37,8.31 Sp B9V dist. 189.04 pc (616.65 l.y.)
 
 
Coord 2000 20264+5638 Discov num STF2687 Comp Coord arcsec 2000 20 26 23.47 +56 38 19.3
Date first 1828 Date last 2023 Obs 53
Pa first 118 Pa last 118 P.A. Now (θ) 118°
Sep first 25.0 Sep last 26.71 Sep. Now (ρ) 26.71"
Mag pri 6.37 Mag sec 8.31 delta mag (ΔM) 1.94 Spectral class B9V (blue-white)
Pri motion ra +010 Sec motion ra +015
Pri motion dec +008 Sec motion dec +007
Notes N (See Notes)
rPM=0.308
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 195066 Constellation Cygnus SAO 32590 HIP 100808
Tycho2 3945-01549-1 Gaia DR2 2187004670048985600 HD 195066 HR 7827
GC 28456 ADS 13870 BD BD+56 2421 Distance 189.04
Distance ly 616.65
 
 
WDS 20264+5638 STF 2687 (HD 195066) : NOTES
 
 
discov_num notes refcode
STF2687 H N 89. MEv2010
A spectroscopic binary. B is BD+56@2422.
 
 
REFERENCES
 
 
refcode metd author reference
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
 
 
DISCOVERER
 
 
discov author
MEV MacEvoy, B.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
20264+5638 STF2687 2008 33 117 26.4 6.37 8.31 B9V +56 2421 N D 202623.47+563819.3
20264+5638 STF2687 2010 39 117 26.2 6.37 8.31 B9V +56 2421 N D 202623.47+563819.3
20264+5638 STF2687 2012 41 117 26.2 6.37 8.31 B9V +56 2421 N D 202623.47+563819.3
20264+5638 STF2687 2014 43 117 25.9 6.37 8.31 B9V +56 2421 N D 202623.47+563819.3
20264+5638 STF2687 2017 45 118 26.2 6.37 8.31 B9V +56 2421 N 202623.47+563819.3
20264+5638 STF2687 2018 47 118 26.2 6.37 8.31 B9V +56 2421 N 202623.47+563819.3
20264+5638 STF2687 2019 52 118 25.1 6.37 8.31 B9V +56 2421 N 202623.47+563819.3
20264+5638 STF2687 2023 53 118 26.7 6.37 8.31 B9V +56 2421 N 202623.47+563819.3

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 20264+5638 STF 2687 (HD 195066) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest seeing notes
Show 23/07/29 daedalus1 mean difficulty separated 118     Primary is white and much brighter that the blue companion.

 
 
WDS 20264+5638 STF 2687 (HD 195066) : MEASURES
 
 
Records found: 1
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 23/07/29 Daedalus1 mean difficulty 26.71 0.05 118.00 0.00 1.92 12 Seeing: Pickering 7, good.
 
 
WDS 20264+5638 (HD 195066) : VIRTUAL EYEPIECE
 
 

20264+5638 STF2687A mag 6.37 Sp B9V 20264+5638 STF2687B sep 26.7 P.A. 118.00 mag 8.31 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20264+5638 (HD 195066) : ALADIN DSS IMAGE @ 20h 26m 23.47s +56° 38' 19.3"
 
 
 
 
WDS 20264+5638 STF 2687 (HD 195066) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20264+5638 STF2687 distance=0' 20265+5619 BU 433AB distance=20' 20265+5619 BU 433AC distance=20' 20289+5655 STI2535AB distance=27' 20289+5655 TOB 187AC distance=27' 20289+5655 TOB 187AD distance=27' 20258+5612 TDT2262 distance=27' 20298+5654 TDT2322 distance=33' 20300+5621 STI2537 distance=35' 20305+5651 TDT2330 distance=37' 20243+5602 TDT2239 distance=40' 20312+5653 RAO 22 distance=43' 20295+5604 KUI 97 distance=43' 20280+5723 MLR 641 distance=47' 20208+5639 STI2520 distance=47' 20251+5727 MLB 84 distance=50' 20315+5611 HJ 1540AB distance=51' 20315+5611 HJ 1540AC distance=51' 20312+5714 A 872 distance=53' 20256+5544 KPP4196 distance=55' 20217+5717 TDT2204 distance=55' 20330+5712 A 739 distance=64' 20194+5607 STF2669AB distance=66' 20194+5607 BU 1486AC distance=66' 20337+5616 HJ 1545 distance=66' 20248+5534 TDS1071 distance=66' 20342+5622 HJ 1546 distance=67' 20343+5707 STI2541 distance=71' 20231+5745 STI2523 distance=73' 20260+5526 STI2527 distance=73' 20175+5646 STI2517 distance=74' 20246+5527 MLR 588 distance=74' 20351+5624 HJ 1551 distance=74' 20352+5622 HJ 1552 distance=76' 20309+5747 TDT2333 distance=78' 20202+5540 STI2519 distance=79' 20178+5717 KR 50CD distance=80' 20178+5717 KR 50AB distance=81' 20178+5717 KR 50AC distance=81' 20354+5712 TDT2399 distance=81' 20164+5636 STI2516 distance=83' 20281+5513 STI2533 distance=87' 20169+5717 TDT2139 distance=87' 20185+5542 BU 1260 distance=88' 20312+5519 A 1678 distance=89' 20315+5520 TDS1079 distance=90' 20257+5508 A 1429 distance=91' 20244+5509 TDT2241 distance=91' 20242+5807 A 729AB distance=92' 20242+5807 A 729AC distance=92' 20365+5557 VBS 30AB distance=94' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 20264+5638 STF2687 118 26.7 0
Show 20265+5619 BU 433 AB 207 7.6 20
Show 20265+5619 BU 433 AC 241 29.3 20
Show 20289+5655 STI2535 AB 227 13.6 27
Show 20289+5655 TOB 187 AC 132 26.9 27
Show 20289+5655 TOB 187 AD 189 31.2 27
Show 20258+5612 TDT2262 95 0.8 27
Show 20298+5654 TDT2322 20 1.7 33
Show 20300+5621 STI2537 343 12.7 35
Show 20305+5651 TDT2330 63 0.6 37
Show 20243+5602 TDT2239 256 1.7 40
Show 20312+5653 RAO 22 152 0.2 43
Show 20295+5604 KUI 97 129 0.8 43
Show 20280+5723 MLR 641 43 1.5 47
Show 20208+5639 STI2520 162 10.8 47
Show 20251+5727 MLB 84 156 7.9 50
Show 20315+5611 HJ 1540 AB 346 22.7 51
Show 20315+5611 HJ 1540 AC 130 40.7 51
Show 20312+5714 A 872 178 0.2 53
Show 20256+5544 KPP4196 114 2.7 55
Show 20217+5717 TDT2204 306 2.1 55
Show 20330+5712 A 739 195 4.6 64
Show 20194+5607 STF2669 AB 259 23.4 66
Show 20194+5607 BU 1486 AC 162 18.4 66
Show 20337+5616 HJ 1545 180 15.5 66
Show 20248+5534 TDS1071 184 0.9 66
Show 20342+5622 HJ 1546 246 17.4 67
Show 20343+5707 STI2541 205 10.5 71
Show 20231+5745 STI2523 170 5.8 73
Show 20260+5526 STI2527 81 5.2 73
Show 20175+5646 STI2517 151 16.1 74
Show 20246+5527 MLR 588 245 0.2 74
Show 20351+5624 HJ 1551 225 42.2 74
Show 20352+5622 HJ 1552 234 21.3 76
Show 20309+5747 TDT2333 138 2.4 78
Show 20202+5540 STI2519 119 13.2 79
Show 20178+5717 KR 50 CD 355 1.7 80
Show 20178+5717 KR 50 AB 128 2.1 81
Show 20178+5717 KR 50 AC 73 66.6 81
Show 20354+5712 TDT2399 4 0.5 81
Show 20164+5636 STI2516 95 4.4 83
Show 20281+5513 STI2533 198 10.0 87
Show 20169+5717 TDT2139 101 3.2 87
Show 20185+5542 BU 1260 135 0.3 88
Show 20312+5519 A 1678 351 2.4 89
Show 20315+5520 TDS1079 126 0.9 90
Show 20257+5508 A 1429 187 0.7 91
Show 20244+5509 TDT2241 341 3.2 91
Show 20242+5807 A 729 AB 252 2.8 92
Show 20242+5807 A 729 AC 69 36.4 92
Show 20365+5557 VBS 30 AB 141 4.6 94

 
 
WDS 20264+5638 : COMPONENTS
 
 
  A
B pa=118.0°
sep=26.71"
 
 
20264+5638 A
 
 
Name HD 195066 Coord arcsec 2000 202623.47+563819.3 Mag 6.37 Spectral class B9V (blue-white)
PmRA 10.00 PmDE 8.0 SAO 32590 HIP 100808
Tycho2 3945-01549-1 HD 195066 HR 7827 GC 28456
BD BD+56 2421
Tycho2
Tycho2 3945-01549-1 Pflag RAmdeg 306.59780831 DEmdeg 56.63869273
PmRA 11.1 PmDE 6.6 E RAmdeg 4 E DEmdeg 4
E pmRA 0.9 E pmDE 1.0 EpRAm 1991.27 EpDEm 1991.38
Num 14 Q RAmdeg 1.0 Q DEmdeg 1.2 Q pmRA 1.0
Q pmDE 1.3 BTmag 6.392 E BTmag 0.014 VTmag 6.371
E VTmag 0.010 Prox 263 TYC T HIP 100808
CCDM A RAdeg 306.59776111 DEdeg 56.63867750 EpRA 1990 1.60
EpDE 1990 1.63 E RAdeg 3.7 E DEdeg 3.7 Posflg
Corr -0.1
SAO
SAO 32590 DelFlag RA1950 PmRA1950 0.0012
DE1950 PmDE1950 0.012 Vmag 6.2 SpType A0
Double code Source 70 CatNum 28456 DM BD+56 2421
DMcomp BDsup HD 195066 M HD 0
GC 28456 RA1950rad 5.3458713 DE1950rad 0.98564474 PmRA2000 0.0017
PmDE2000 0.01
Hipparcos
Catalog H HIP 100808 Proxy RAhms 20 26 23.46
DEdms +56 38 19.2 Vmag 6.38 VarFlag R Vmag H
RAdeg 306.598 DEdeg 56.6387 AstroRef A Plx 5.96
CCDM 10.00 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual B M HIP
Theta Rho HD BD BD+56 2421
CD CP Dm number +56 2421 VIred 0.03
SpType B9V R SpType Coord arcsec 2000 202623.46+563819.2
Hipparcos 2
HIP 100808 Sn 95 So 3 Nc 1
RArad 5.3511404791 DErad 0.9885314134 Plx 5.29 PmRA 11.61
PmDE 7.99 E RArad 0.43 E DErad 0.45 E Plx 0.49
E pmRA 0.46 E pmDE 0.47 Hpmag E Hpmag 0.0093
SHp 0.009 VA 0 BV 0.018 E BV 0.005
VI 0.04
CCDM
Ccdm 20264+5638 RComp Comp A Note1
Note2 Discov num DRAs -0.49 DDEs 19.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.2 Sp A0 PmNote *
PmRA 11 PmDE 9 Dm number +56 2421 Cat1 BD
Name2 +56 1367 Cat2 AGK2/3 HD 195066 M HD
ADS BDS A13870 M ADS BDS N IDS IDS 20240N5619A
HIC 100808
 
 
20264+5638 B
 
 
Coord arcsec 2000 202626.33+563806.8 Mag 8.31 PmRA 15.00 PmDE 7.0
SAO 32591 Tycho2 3945-01797-1 HD 239413 DM BD+56 2422
Delta magnitude 1.94 Coordinate calculated yes
SAO
SAO 32591 DelFlag RA1950 PmRA1950 0.0002
DE1950 PmDE1950 0.028 Vmag 8.9 SpType A0
Double code Source 38 CatNum 11373 DM BD+56 2422
DMcomp BDsup HD 239413 M HD 0
GC RA1950rad 5.34607099 DE1950rad 0.98558755 PmRA2000 0.0007
PmDE2000 0.026
CCDM
Ccdm 20264+5638 RComp Comp B Note1
Note2 Discov num STF2687 DRAs 2.29 DDEs 8.1
R dRAs 10 Year 1831 Theta 118 Rho 26.6
Obs 13 Vmag 9.0 Sp A0 PmNote *
PmRA 5 PmDE 21 Dm number +56 2422 Cat1 BD
Name2 +56 1368 Cat2 AGK2/3 HD 239413 M HD
ADS BDS A13870 M ADS BDS N IDS IDS 20240N5619B
HIC 100812