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Current system
18128+0549
STT 345 AB
HD 166958


Nearby doubles
11' : 18135+0548
FOX 80AB

19' : 18135+0604
NSN 703

22' : 18142+0545
TDT 756AB

25' : 18136+0527
LDS1007

25' : 18116+0606
CFN 14

27' : 18112+0559
J 805

27' : 18124+0524
OSO 95

37' : 18152+0533
J 2123AB

50' : 18125+0501
HEI 896

53' : 18096+0609
STF2283

54' : 18127+0456
BAL2921

56' : 18122+0455
HEI9010

57' : 18122+0453
BAL2918

67' : 18123+0656
DBR 289

68' : 18122+0442
BAL2919

70' : 18125+0440
BAL2920

71' : 18151+0448
BAL2923

73' : 18165+0637
TDS 912

80' : 18155+0441
BAL2924

81' : 18182+0557
HJ 2830

84' : 18170+0454
BAL2926

85' : 18090+0447
TDT 710

88' : 18073+0617
TDT 694

90' : 18163+0702
LDS5233

91' : 18140+0718
LDS5230

91' : 18162+0434
STTA167



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.
 
 
WDS 18128+0549 : COMPONENTS
 
 
  A B
B pa=66.6°
sep=1.48"
 
C pa=198.7°
sep=86.42"
pa=199.4°
sep=87.42"
 
 
18128+0549 A
 
 
Name HD 166958 Coord arcsec 2000 181249.00+054921.0 Mag 7.74 Spectral class B9 (blue-white)
PmRA -13.00 PmDE -18.0 SAO 123254 HIP 89252
Tycho2 0443-00519-1 HD 166958 BD BD+05 3643
Tycho2
Tycho2 0443-00519-1 Pflag P RAmdeg 273.20415634 DEmdeg 5.82246472
PmRA -13.4 PmDE -18.0 E RAmdeg 5 E DEmdeg 6
E pmRA 1.5 E pmDE 1.5 EpRAm 1991.58 EpDEm 1991.45
Num 7 Q RAmdeg 1.8 Q DEmdeg 0.8 Q pmRA 1.9
Q pmDE 0.8 BTmag 7.777 E BTmag 0.016 VTmag 7.743
E VTmag 0.012 Prox 15 TYC T HIP 89252
CCDM A RAdeg 273.20416833 DEdeg 5.82249722 EpRA 1990 1.73
EpDE 1990 1.68 E RAdeg 5.0 E DEdeg 5.6 Posflg D
Corr 0.2
SAO
SAO 123254 DelFlag RA1950 PmRA1950 0.0004
DE1950 PmDE1950 -0.013 Vmag 8.4 SpType B9
Double code Source 32 CatNum 8354 DM BD+05 3643
DMcomp A BDsup HD 166958 M HD 0
GC RA1950rad 4.75762635 DE1950rad 0.10137926 PmRA2000 0.0006
PmDE2000 -0.013
Hipparcos
Catalog H HIP 89252 Proxy H RAhms 18 12 49.00
DEdms +05 49 21.0 Vmag 7.59 VarFlag R Vmag H
RAdeg 273.204 DEdeg 5.8225 AstroRef A Plx 5.78
CCDM 18128+0549 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 66 Rho 1.461 HD 166958 BD BD+05 3643
CD CP Dm number +05 3643 VIred 0.06
SpType B9 R SpType Coord arcsec 2000 181249.00+054921.0
Hipparcos 2
HIP 89252 Sn 15 So 3 Nc 2
RArad 4.7683123175 DErad 0.1016217673 Plx 5.26 PmRA -11.25
PmDE -12.97 E RArad 0.89 E DErad 0.69 E Plx 0.98
E pmRA 1.11 E pmDE 0.83 Hpmag 7.6096 E Hpmag 0.0013
SHp 0.011 VA 0 BV 0.144 E BV 0.139
VI 0.06
CCDM
Ccdm 18128+0549 RComp Comp A Note1
Note2 Discov num DRAs 0.97 DDEs 21.6
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.1 Sp B9 PmNote *
PmRA -21 PmDE -3 Dm number +05 3643 Cat1 BD
Name2 +05 2428 Cat2 AGK2/3 HD 166958 M HD
ADS BDS A11160 M ADS BDS N IDS IDS 18079N0548A
HIC 89252
 
 
18128+0549 B
 
 
Coord arcsec 2000 181249.09+054921.6 Mag 9.77 PmRA -13.00 PmDE -18.0
Tycho2 0443-00519-2 Calc delta mag 2.03 Calc coord yes
Tycho2
Tycho2 0443-00519-2 Pflag P RAmdeg 273.20415634 DEmdeg 5.82246472
PmRA -13.4 PmDE -18.0 E RAmdeg 5 E DEmdeg 6
E pmRA 1.5 E pmDE 1.5 EpRAm 1991.58 EpDEm 1991.45
Num 7 Q RAmdeg 1.8 Q DEmdeg 0.8 Q pmRA 1.9
Q pmDE 0.8 BTmag 10.263 E BTmag 0.040 VTmag 9.774
E VTmag 0.035 Prox 15 TYC HIP 89252
CCDM B RAdeg 273.20454361 DEdeg 5.82267389 EpRA 1990 1.73
EpDE 1990 1.70 E RAdeg 21.6 E DEdeg 26.1 Posflg D
Corr 0.2
CCDM
Ccdm 18128+0549 RComp Comp B Note1
Note2 Discov num STT 345 DRAs DDEs
R dRAs Year 1845 Theta 064 Rho 1.3
Obs 15 Vmag 11.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11160 M ADS BDS N IDS IDS 18079N0548B
HIC 89252
 
 
18128+0549 C
 
 
Coord arcsec 2000 181247.14+054759.1 Mag 9.64 PmRA 2.00 PmDE -9.0
Tycho2 0443-01635-1 Calc delta mag 1.9 Calc coord yes
Tycho2
Tycho2 0443-01635-1 Pflag RAmdeg 273.19628456 DEmdeg 5.79971521
PmRA 1.5 PmDE -10.8 E RAmdeg 14 E DEmdeg 16
E pmRA 1.6 E pmDE 1.6 EpRAm 1990.05 EpDEm 1989.16
Num 8 Q RAmdeg 0.7 Q DEmdeg 1.1 Q pmRA 0.8
Q pmDE 1.1 BTmag 9.775 E BTmag 0.028 VTmag 9.643
E VTmag 0.030 Prox 867 TYC T HIP
CCDM RAdeg 273.19628250 DEdeg 5.79974278 EpRA 1990 1.80
EpDE 1990 1.68 E RAdeg 15.3 E DEdeg 18.3 Posflg
Corr 0.4
CCDM
Ccdm 18128+0549 RComp Comp C Note1
Note2 Discov num STT 345 DRAs -0.89 DDEs -61.5
R dRAs 10 Year 1909 Theta 200 Rho 87.4
Obs 1 Vmag 9.5 Sp A2 PmNote *
PmRA -1 PmDE -15 Dm number Cat1
Name2 +05 2427 Cat2 AGK2/3 HD M HD
ADS BDS A11160 M ADS BDS N IDS IDS 18079N0548C
HIC