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Doubles in session


Current system
20189+3817
A 1425 AB


Nearby doubles
7' : 20192+3822
ES 2504

8' : 20183+3820
CRB 10

9' : 20183+3822
SLE 992

10' : 20196+3820
A 1426

12' : 20183+3825
ES 2049

13' : 20196+3808
SEI1084AB

16' : 20182+3803
SLE 991

16' : 20198+3806
BKO 826

16' : 20194+3831
SLE1001

16' : 20183+3802
SLE 993

19' : 20176+3806
ES 2502

20' : 20178+3802
RBR 25

23' : 20189+3839
SLE 996

24' : 20206+3806
SLE1009

24' : 20195+3754
SLE1003

24' : 20177+3836
SEI1069

25' : 20176+3835
ALI 927

26' : 20173+3834
MLB 951

26' : 20202+3838
ES 2052

27' : 20202+3755
TDT2182

28' : 20173+3837
TDT2141

28' : 20202+3840
SLE1006AB

29' : 20204+3840
SEI1088AB

29' : 20193+3748
SLE1000

30' : 20179+3845
SLE 990

33' : 20168+3755
SLE 984



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 20189+3817 : COMPONENTS
 
 
  A B
B pa=265.2°
sep=0.14"
 
C pa=317.1°
sep=7.99"
pa=317.9°
sep=7.90"
 
 
20189+3817 A
 
 
Coord arcsec 2000 201851.71+381646.5 Mag 7.95 Spectral class O9III (blue) PmRA -10.00
PmDE -13.0 SAO 69815 HIP 100146 Tycho2 3151-03449-1
HD 193443 BD BD+37 3879
Tycho2
Tycho2 3151-03449-1 Pflag RAmdeg 304.71544480 DEmdeg 38.27958440
PmRA -5.3 PmDE -4.3 E RAmdeg 4 E DEmdeg 4
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.23 EpDEm 1991.34
Num 17 Q RAmdeg 1.8 Q DEmdeg 1.2 Q pmRA 1.8
Q pmDE 1.3 BTmag 7.655 E BTmag 0.015 VTmag 7.301
E VTmag 0.010 Prox 999 TYC T HIP 100146
CCDM AS RAdeg 304.71546139 DEdeg 38.27959417 EpRA 1990 1.55
EpDE 1990 1.65 E RAdeg 4.4 E DEdeg 4.2 Posflg P
Corr 0.1
SAO
SAO 69815 DelFlag RA1950 PmRA1950 -0.0002
DE1950 PmDE1950 0.013 Vmag 7.2 SpType B1
Double code Source 5 CatNum 2011 DM BD+37 3879
DMcomp BDsup HD 193443 M HD 0
GC RA1950rad 5.3102588 DE1950rad 0.66535898 PmRA2000 0.0001
PmDE2000 0.011
Hipparcos
Catalog H HIP 100146 Proxy H RAhms 20 18 51.71
DEdms +38 16 46.5 Vmag 7.26 VarFlag R Vmag H
RAdeg 304.715 DEdeg 38.2796 AstroRef * Plx 1.23
CCDM 20189+3817 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AS
Theta 78 Rho 0.15 HD 193443 BD BD+37 3879
CD CP Dm number +37 3879 VIred 0.42
SpType O9III R SpType Coord arcsec 2000 201851.71+381646.5
Hipparcos 2
HIP 100146 Sn 55 So 3 Nc 2
RArad 5.3182881142 DErad 0.6681049966 Plx 0.92 PmRA -3.94
PmDE -6.13 E RArad 0.39 E DErad 0.42 E Plx 0.52
E pmRA 0.43 E pmDE 0.51 Hpmag 7.3342 E Hpmag 0.001
SHp 0.01 VA 0 BV 0.33 E BV 0.009
VI 0.38
CCDM
Ccdm 20189+3817 RComp Comp A Note1
Note2 Discov num DRAs -2.24 DDEs -14.9
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.5 Sp B1 PmNote *
PmRA -1 PmDE -27 Dm number +37 3879 Cat1 BD
Name2 +38 2011 Cat2 AGK2/3 HD 193443 M HD
ADS BDS A13686 M ADS BDS N IDS IDS 20152N3758A
HIC 100146
 
 
20189+3817 B
 
 
Coord arcsec 2000 201851.70+381646.5 Mag 8.25 Calc delta mag 0.3 Calc coord yes
CCDM
Ccdm 20189+3817 RComp Comp B Note1
Note2 Discov num A 1425 DRAs DDEs
R dRAs Year 1960 Theta 280 Rho 0.2
Obs 7 Vmag 8.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13686 M ADS BDS N IDS IDS 20152N3758B
HIC 100146
 
 
20189+3817 C
 
 
Coord arcsec 2000 201851.25+381652.4 Mag 13.2 Calc delta mag 5.25 Calc coord yes
CCDM
Ccdm 20189+3817 RComp Comp C Note1
Note2 Discov num A 1425 DRAs DDEs
R dRAs Year 1906 Theta 310 Rho 8.8
Obs 2 Vmag 13.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13686 M ADS BDS N IDS IDS 20152N3758C
HIC 100146