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Current system
21176+8231
STF 2807
HD 204372


Nearby doubles
22' : 21170+8210
LOC 482

22' : 21164+8210
LDS1949

45' : 21370+8255
STF2837

45' : 21354+8300
LDS1956

48' : 21239+8317
HDS3049

49' : 21196+8143
AZC 180

53' : 21322+8316
TDT3014

59' : 21147+8133
LOC 478

62' : 21060+8134
LOC 480

67' : 21236+8337
LOC 491

72' : 21118+8121
LOC 571AB

75' : 21060+8121
PKO 31

78' : 21157+8114
MLR 245

87' : 21105+8356
LOC 481

103' : 21210+8413
MLR 247

107' : 21066+8048
TOK 632

107' : 21235+8417
SKF 397AB

124' : 21070+8030
LOC 479

126' : 21211+8436
MLR 248

130' : 21185+8021
STF2801

151' : 21152+8501
LOC 483

151' : 21357+8459
LOC 492

167' : 21223+7945
MLR 246

175' : 21249+7938
LOC 489

197' : 21010+7919
MLR 244

210' : 21217+7902
UC 4456



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 21176+8231 : COMPONENTS
 
 
  A
B pa=351.0°
sep=1.15"
 
 
21176+8231 A
 
 
Componente originario normalizzato AB Name HD 204372 Coord arcsec 2000 211733.47+823103.7 Mag 8.65
Spectral class F8 (yellow-white) PmRA 12.00 PmDE 82.0 SAO 3550
HIP 105112 Tycho2 4649-00045-1 HD 204372 GC 29930
BD BD+81 737
Tycho2
Tycho2 4649-00045-1 Pflag P RAmdeg 319.38945513 DEmdeg 82.51769270
PmRA 11.8 PmDE 82.4 E RAmdeg 8 E DEmdeg 9
E pmRA 2.4 E pmDE 2.5 EpRAm 1991.62 EpDEm 1991.56
Num 3 Q RAmdeg 1.1 Q DEmdeg 0.1 Q pmRA 1.1
Q pmDE 0.1 BTmag 9.187 E BTmag 0.018 VTmag 8.651
E VTmag 0.014 Prox 19 TYC T HIP 105112
CCDM A RAdeg 319.39053528 DEdeg 82.51735361 EpRA 1990 1.73
EpDE 1990 1.71 E RAdeg 7.1 E DEdeg 7.5 Posflg D
Corr 0.0
SAO
SAO 3550 DelFlag RA1950 PmRA1950 0.0103
DE1950 PmDE1950 0.087 Vmag 7.8 SpType F8
Double code Source 70 CatNum 29930 DM BD+81 737
DMcomp BDsup HD 204372 M HD 0
GC 29930 RA1950rad 5.58677031 DE1950rad 1.43648089 PmRA2000 0.0098
PmDE2000 0.083
Hipparcos
Catalog H HIP 105112 Proxy H RAhms 21 17 33.73
DEdms +82 31 02.4 Vmag 7.91 VarFlag R Vmag G
RAdeg 319.391 DEdeg 82.5173 AstroRef A Plx 12.82
CCDM 21176+8231 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 311 Rho 1.909 HD 204372 BD BD+81 737
CD CP Dm number +81 737 VIred 0.62
SpType F8 R SpType Coord arcsec 2000 211733.73+823102.4
Hipparcos 2
HIP 105112 Sn 15 So 3 Nc 2
RArad 5.574416406 DErad 1.4401993183 Plx 13.33 PmRA 12.35
PmDE 78.75 E RArad 0.75 E DErad 0.72 E Plx 0.81
E pmRA 1.4 E pmDE 0.72 Hpmag 8.0212 E Hpmag 0.0012
SHp 0.011 VA 0 BV 0.551 E BV 0.015
VI 0.62
CCDM
Ccdm 21176+8231 RComp Comp A Note1
Note2 Discov num DRAs -2.94 DDEs 4.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.5 Sp F8 PmNote *
PmRA -5 PmDE 94 Dm number +81 737 Cat1 BD
Name2 +82 624 Cat2 AGK2/3 HD 204372 M HD
ADS BDS A14921 M ADS BDS N IDS IDS 21231N8205A
HIC 105112
 
 
21176+8231 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 211733.38+823104.8 Mag 8.77 PmRA 12.00
PmDE 82.0 HIP 105112 Tycho2 4649-00045-2 Calc delta mag 0.12
Calc coord yes
Tycho2
Tycho2 4649-00045-2 Pflag P RAmdeg 319.38945513 DEmdeg 82.51769270
PmRA 11.8 PmDE 82.4 E RAmdeg 8 E DEmdeg 9
E pmRA 2.4 E pmDE 2.5 EpRAm 1991.62 EpDEm 1991.56
Num 3 Q RAmdeg 1.1 Q DEmdeg 0.1 Q pmRA 1.1
Q pmDE 0.1 BTmag 9.358 E BTmag 0.019 VTmag 8.771
E VTmag 0.014 Prox 19 TYC T HIP 105112
CCDM B RAdeg 319.38752611 DEdeg 82.51770222 EpRA 1990 1.74
EpDE 1990 1.70 E RAdeg 8.0 E DEdeg 8.5 Posflg D
Corr 0.0
Hipparcos
Catalog H HIP 105112 Proxy H RAhms 21 17 33.73
DEdms +82 31 02.4 Vmag 7.91 VarFlag R Vmag G
RAdeg 319.391 DEdeg 82.5173 AstroRef A Plx 12.82
CCDM 21176+8231 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 311 Rho 1.909 HD 204372 BD BD+81 737
CD CP Dm number +81 737 VIred 0.62
SpType F8 R SpType Coord arcsec 2000 211733.73+823102.4
Hipparcos 2
HIP 105112 Sn 15 So 3 Nc 2
RArad 5.574416406 DErad 1.4401993183 Plx 13.33 PmRA 12.35
PmDE 78.75 E RArad 0.75 E DErad 0.72 E Plx 0.81
E pmRA 1.4 E pmDE 0.72 Hpmag 8.0212 E Hpmag 0.0012
SHp 0.011 VA 0 BV 0.551 E BV 0.015
VI 0.62
CCDM
Ccdm 21176+8231 RComp Comp B Note1
Note2 Discov num STF2807 DRAs DDEs
R dRAs Year 1944 Theta 313 Rho 2.1
Obs 15 Vmag 8.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14921 M ADS BDS N IDS IDS 21231N8205B
HIC 105112