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Doubles in session


Current system
18311+3215
STF 2333 BC


Nearby doubles
17' : 18310+3231
SEI 564

23' : 18324+3231
TDT 932

25' : 18318+3152
SLE 191

25' : 18292+3220
HJ 1326

33' : 18303+3246
SLE 184

36' : 18333+3203
SLE 201

37' : 18339+3208
SLE 209

42' : 18295+3251
COU1149

42' : 18322+3136
UC 3602

43' : 18343+3205
ES 2419

44' : 18344+3200
ES 2420AB

47' : 18330+3136
STF2340AB

49' : 18295+3259
TDS 925

49' : 18347+3158
SLE 211

56' : 18267+3211
ES 2418

56' : 18355+3215
CRB 127

56' : 18351+3151
UC 3620

57' : 18295+3307
UC 3592

57' : 18303+3120
LDS4789

61' : 18310+3115
A 247

62' : 18274+3137
J 761

68' : 18364+3209
SLE 219

70' : 18356+3136
SLE 217

78' : 18371+3201
SLE 220

80' : 18314+3055
SLE 186

92' : 18378+3249
LDS4792



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 18311+3215 : COMPONENTS
 
 
  A B C
B pa=331.9°
sep=6.46"
 
C pa=30.4°
sep=156.37"
pa=32.4°
sep=153.09"
 
D pa=341.8°
sep=84.16"
pa=342.7°
sep=77.80"
pa=242.4°
sep=118.72"
 
 
18311+3215 A
 
 
Name HD 171026 Coord arcsec 2000 183106.94+321443.4 Mag 7.82 Spectral class B9IV (blue-white)
PmRA -1.00 PmDE -2.0 SAO 67059 HIP 90766
Tycho2 2628-00495-1 HD 171026 GC 25299 BD BD+32 3143
Tycho2
Tycho2 2628-00495-1 Pflag RAmdeg 277.77890359 DEmdeg 32.24538777
PmRA -2.9 PmDE -0.5 E RAmdeg 5 E DEmdeg 6
E pmRA 1.5 E pmDE 1.5 EpRAm 1991.57 EpDEm 1991.44
Num 6 Q RAmdeg 1.2 Q DEmdeg 1.5 Q pmRA 1.3
Q pmDE 1.6 BTmag 7.797 E BTmag 0.016 VTmag 7.817
E VTmag 0.012 Prox 64 TYC T HIP 90766
CCDM A RAdeg 277.77891167 DEdeg 32.24538889 EpRA 1990 1.71
EpDE 1990 1.63 E RAdeg 4.6 E DEdeg 5.5 Posflg
Corr -0.3
SAO
SAO 67059 DelFlag RA1950 PmRA1950 0.001
DE1950 PmDE1950 0 Vmag 7.3 SpType A0
Double code Source 70 CatNum 25299 DM BD+32 3143
DMcomp BDsup HD 171026 M HD 0
GC 25299 RA1950rad 4.84001347 DE1950rad 0.56215179 PmRA2000 0.0012
PmDE2000 0
Hipparcos
Catalog H HIP 90766 Proxy H RAhms 18 31 06.94
DEdms +32 14 43.4 Vmag 7.45 VarFlag R Vmag H
RAdeg 277.779 DEdeg 32.2454 AstroRef A Plx 2.09
CCDM 18311+3215 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 333 Rho 6.456 HD 171026 BD BD+32 3143
CD CP Dm number +32 3143 VIred -0.04
SpType A0... R SpType Coord arcsec 2000 183106.94+321443.4
Hipparcos 2
HIP 90766 Sn 15 So 3 Nc 2
RArad 4.8481567204 DErad 0.5627881544 Plx 4.61 PmRA -1.14
PmDE -1.86 E RArad 0.62 E DErad 0.46 E Plx 0.78
E pmRA 0.76 E pmDE 0.73 Hpmag 7.4571 E Hpmag 0.0013
SHp 0.013 VA 0 BV -0.019 E BV 0.01
VI 0
CCDM
Ccdm 18311+3215 RComp Comp A Note1
Note2 Discov num DRAs 1.04 DDEs -16.2
R dRAs 10 Year Theta Rho
Obs 4 Vmag 7.8 Sp A0 PmNote *
PmRA 13 PmDE 1 Dm number +32 3143 Cat1 BD
Name2 67059 Cat2 SAO HD 171026 M HD
ADS BDS A11424 M ADS BDS N IDS IDS 18274N3210A
HIC 90766
 
 
18311+3215 B
 
 
Coord arcsec 2000 183106.70+321449.1 Coord calc 183106.70+321449.1 Mag 8.57 PmRA -1.00
PmDE -2.0 Tycho2 2628-02310-1 Calc delta mag 0.75
Tycho2
Tycho2 2628-02310-1 Pflag RAmdeg 277.77796283 DEmdeg 32.24697664
PmRA -6.5 PmDE 3.6 E RAmdeg 6 E DEmdeg 7
E pmRA 1.7 E pmDE 1.7 EpRAm 1991.53 EpDEm 1991.46
Num 4 Q RAmdeg 1.2 Q DEmdeg 1.7 Q pmRA 1.1
Q pmDE 1.7 BTmag 8.536 E BTmag 0.017 VTmag 8.572
E VTmag 0.014 Prox 64 TYC T HIP 90766
CCDM B RAdeg 277.77798028 DEdeg 32.24696833 EpRA 1990 1.68
EpDE 1990 1.66 E RAdeg 6.3 E DEdeg 7.4 Posflg
Corr -0.3
CCDM
Ccdm 18311+3215 RComp Comp B Note1
Note2 Discov num STF2333 DRAs DDEs
R dRAs Year 1831 Theta 334 Rho 6.4
Obs 23 Vmag 8.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11424 M ADS BDS N IDS IDS 18274N3210B
HIC 90766
 
 
18311+3215 C
 
 
Coord arcsec 2000 183113.17+321658.3 Mag 12.9 PmRA -1.00 PmDE 2.0
Calc delta mag 5.08 Calc coord yes
CCDM
Ccdm 18311+3215 RComp Comp C Note1
Note2 Discov num STF2333 DRAs DDEs
R dRAs Year 1909 Theta 035 Rho 163.8
Obs 2 Vmag 12.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11424 M ADS BDS N IDS IDS 18274N3210C
HIC
 
 
18311+3215 D
 
 
Coord arcsec 2000 183104.87+321603.4 Mag 13.7 PmRA 2.00 PmDE 16.0
Calc delta mag 5.88 Calc coord yes
CCDM
Ccdm 18311+3215 RComp Comp D Note1
Note2 Discov num STF2333 DRAs DDEs
R dRAs Year 1952 Theta 339 Rho 85.0
Obs 1 Vmag 13.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11424 M ADS BDS N IDS IDS 18274N3210D
HIC