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Doubles in session


Current system
18426+5532
ISO 7 Aa,Ab


Nearby doubles
29' : 18440+5558
STI2384

33' : 18421+5501
KPP1134

39' : 18471+5523
SIG 5

41' : 18390+5559
A 1380AB

52' : 18443+5443
UC 3659

54' : 18471+5455
TOI1746

65' : 18499+5516
MLR 574

65' : 18351+5521
STI2379

65' : 18486+5613
TDT1062

65' : 18433+5637
STI2383

66' : 18463+5630
DAL 31

77' : 18458+5645
MLB 137

83' : 18438+5654
BU 465

98' : 18319+5459
TDT 929

100' : 18542+5535
STI2395

100' : 18337+5638
TDS 929

105' : 18471+5356
A 1382

107' : 18383+5353
A 1378AB

113' : 18318+5639
ES 975

115' : 18426+5727
STI2382

116' : 18563+5537
MLB 138AB

117' : 18380+5722
STI2380

118' : 18481+5721
STI2389

122' : 18459+5731
STI2386

123' : 18510+5713
STI2393

125' : 18541+5417
ES 976



Selections
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Binocular doubles
Binary Systems
Triple Systems
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Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.
 
 
WDS 18426+5532 : COMPONENTS
 
 
  A Ab B
Ab pa=150.5°
sep=0.16"
 
B pa=167.1°
sep=139.82"
pa=167.1°
sep=139.66"
 
C pa=348.5°
sep=318.15"
pa=348.5°
sep=318.31"
pa=348.1°
sep=457.94"
 
 
18426+5532 A
 
 
Name 46 Dra Coord arcsec 2000 184237.96+553221.8 Mag 5.01 Spectral class B9.5pHg: (blue-white)
PmRA -3.00 PmDE 23.0 SAO 31119 HIP 91755
Tycho2 3922-02095-1 HD 173524 HR 7049 GC 25635
BD BD+55 2107 Flamsteed 46 Draconis Flamsteed name 46 Dra FK5 3491
Tycho2
Tycho2 3922-02095-1 Pflag X RAmdeg DEmdeg
PmRA PmDE E RAmdeg E DEmdeg
E pmRA E pmDE EpRAm EpDEm
Num Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 4.925 E BTmag 0.014 VTmag 5.013
E VTmag 0.009 Prox 999 TYC T HIP 91755
CCDM RAdeg 280.65814972 DEdeg 55.53940306 EpRA 1990 1.53
EpDE 1990 1.61 E RAdeg 3.4 E DEdeg 3.4 Posflg
Corr 0.1
SAO
SAO 31119 DelFlag RA1950 PmRA1950 -0.0009
DE1950 PmDE1950 0.024 Vmag 5.1 SpType A0
Double code Source 70 CatNum 25635 DM BD+55 2107
DMcomp BDsup HD 173524 M HD 0
GC 25635 RA1950rad 4.89417803 DE1950rad 0.9684523 PmRA2000 -0.0003
PmDE2000 0.024
Hipparcos
Catalog H HIP 91755 Proxy RAhms 18 42 37.96
DEdms +55 32 21.8 Vmag 5.03 VarFlag R Vmag H
RAdeg 280.658 DEdeg 55.5394 AstroRef Plx 8.96
CCDM 18426+5534 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 173524 BD BD+55 2107
CD CP Dm number +55 2107 VIred -0.06
SpType B9.5p... R SpType Coord arcsec 2000 184237.96+553221.8
Hipparcos 2
HIP 91755 Sn 5 So 0 Nc 1
RArad 4.8984088048 DErad 0.9693454041 Plx 9.58 PmRA -3.01
PmDE 23.02 E RArad 0.16 E DErad 0.14 E Plx 0.16
E pmRA 0.21 E pmDE 0.2 Hpmag 5.0108 E Hpmag 0.0005
SHp 0.004 VA 0 BV -0.07 E BV 0.003
VI -0.05
 
 
18426+5532 Ab
 
 
Coord arcsec 2000 184237.97+553221.7 Calc delta mag 5.04 Calc coord yes
 
 
18426+5532 B
 
 
Coord arcsec 2000 184241.63+553005.5 Mag 11.04 PmRA 19.00 PmDE 34.0
Calc delta mag 6 Calc coord yes
 
 
18426+5532 C
 
 
Coord arcsec 2000 184230.52+553733.6 Mag 8.24 PmRA 11.00 PmDE 13.0
SAO 31117 HIP 91735 Tycho2 3922-00929-1 HD 238925
BD BD+55 2106 Calc delta mag 3.2 Calc coord yes
Tycho2
Tycho2 3922-00929-1 Pflag RAmdeg 280.60336770 DEmdeg 55.62614549
PmRA 13.0 PmDE 10.4 E RAmdeg 8 E DEmdeg 8
E pmRA 1.1 E pmDE 1.2 EpRAm 1990.43 EpDEm 1990.63
Num 14 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.4
Q pmDE 1.0 BTmag 9.422 E BTmag 0.021 VTmag 8.240
E VTmag 0.014 Prox 999 TYC T HIP 91735
CCDM RAdeg 280.60331389 DEdeg 55.62612083 EpRA 1990 1.58
EpDE 1990 1.56 E RAdeg 7.8 E DEdeg 8.1 Posflg
Corr 0.0
SAO
SAO 31117 DelFlag RA1950 PmRA1950 0.0019
DE1950 PmDE1950 0.024 Vmag 7.5 SpType K0
Double code Source 38 CatNum 9931 DM BD+55 2106
DMcomp BDsup HD 238925 M HD 0
GC RA1950rad 4.89324102 DE1950rad 0.96997222 PmRA2000 0.0026
PmDE2000 0.024
Hipparcos
Catalog H HIP 91735 Proxy RAhms 18 42 24.80
DEdms +55 37 34.0 Vmag 8.13 VarFlag R Vmag H
RAdeg 280.603 DEdeg 55.6261 AstroRef Plx 5.52
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 238925 BD BD+55 2106
CD CP Dm number +55 2106 VIred 0.98
SpType K0 R SpType Coord arcsec 2000 184224.80+553734.0
Hipparcos 2
HIP 91735 Sn 5 So 0 Nc 1
RArad 4.8974518109 DErad 0.9708589104 Plx 6.46 PmRA 12.79
PmDE 13.58 E RArad 0.57 E DErad 0.56 E Plx 0.6
E pmRA 0.82 E pmDE 0.82 Hpmag 8.2993 E Hpmag 0.0016
SHp 0.015 VA 0 BV 1.029 E BV 0.036
VI 1