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Doubles in session


Current system
21268+3731
COU 1821 Da,Db


Nearby doubles
21' : 21272+3752
ES 2520

22' : 21264+3712
SEI1514

22' : 21278+3715
SEI1518

24' : 21284+3745
TDT2983

31' : 21243+3740
WSI 7

31' : 21249+3711
TDS1126

31' : 21252+3708
SEI1513

32' : 21241+3741
SEI1458

33' : 21287+3755
KPP1064

34' : 21295+3728
SEI1519

37' : 21238+3721
STFA 55AB

47' : 21250+3814
TDT2950

48' : 21233+3801
ES 2519

51' : 21226+3744
COU1820

51' : 21228+3754
WIS 349

54' : 21257+3824
TDT2955

54' : 21258+3640
S 790AB

55' : 21305+3701
SEI1521AB

55' : 21221+3734
ES 2517

55' : 21233+3810
ALI 690

56' : 21283+3640
CRB 142

60' : 21317+3730
GRV 474

61' : 21285+3636
ALI 443

62' : 21294+3640
CRB 16

62' : 21231+3647
ES 2124

64' : 21278+3835
KU 61AB



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 21268+3731 : COMPONENTS
 
 
  A B C D
B pa=340.0°
sep=3.81"
 
C pa=276.0°
sep=20.23"
pa=265.6°
sep=18.87"
 
D pa=334.5°
sep=109.31"
pa=334.3°
sep=105.52"
pa=344.4°
sep=100.24"
 
Db pa=334.8°
sep=109.03"
pa=334.6°
sep=105.23"
pa=344.7°
sep=100.03"
pa=97.6°
sep=0.53"
 
 
21268+3731 A
 
 
Name HD 204324 Coord arcsec 2000 212647.68+373103.7 Mag 7.91 Spectral class K0 (yellow-orange)
PmRA -7.00 PmDE -64.0 SAO 71348 HIP 105894
Tycho2 3182-00970-1 HD 204324 BD BD+36 4564
Tycho2
Tycho2 3182-00970-1 Pflag RAmdeg 321.69864257 DEmdeg 37.51763725
PmRA -1.4 PmDE -21.4 E RAmdeg 5 E DEmdeg 5
E pmRA 0.9 E pmDE 0.9 EpRAm 1990.98 EpDEm 1991.16
Num 14 Q RAmdeg 0.8 Q DEmdeg 1.2 Q pmRA 0.8
Q pmDE 1.2 BTmag 9.642 E BTmag 0.018 VTmag 7.911
E VTmag 0.010 Prox 999 TYC T HIP 105894
CCDM RAdeg 321.69864722 DEdeg 37.51768667 EpRA 1990 1.60
EpDE 1990 1.67 E RAdeg 5.0 E DEdeg 4.8 Posflg
Corr 0.1
SAO
SAO 71348 DelFlag RA1950 PmRA1950 -0.0013
DE1950 PmDE1950 -0.008 Vmag 7.6 SpType K0
Double code Source 5 CatNum 2119 DM BD+36 4564
DMcomp BDsup HD 204324 M HD 0
GC RA1950rad 5.60582918 DE1950rad 0.65101475 PmRA2000 -0.0011
PmDE2000 -0.011
Hipparcos
Catalog H HIP 105894 Proxy RAhms 21 26 47.68
DEdms +37 31 03.7 Vmag 7.76 VarFlag R Vmag H
RAdeg 321.699 DEdeg 37.5177 AstroRef Plx 2.96
CCDM 21268+3731 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 204324 BD BD+36 4564
CD CP Dm number +36 4564 VIred 1.38
SpType K0 R SpType Coord arcsec 2000 212647.68+373103.7
Hipparcos 2
HIP 105894 Sn 5 So 0 Nc 1
RArad 5.6147006006 DErad 0.6548071726 Plx 3.18 PmRA -0.42
PmDE -22.35 E RArad 0.34 E DErad 0.4 E Plx 0.62
E pmRA 0.39 E pmDE 0.48 Hpmag 7.8993 E Hpmag 0.0013
SHp 0.013 VA 0 BV 1.447 E BV 0.017
VI 1.45
CCDM
Ccdm 21268+3731 RComp Comp A Note1
Note2 Discov num DRAs -0.32 DDEs 3.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.1 Sp K0 PmNote *
PmRA -1 PmDE -21 Dm number +36 4564 Cat1 BD
Name2 71348 Cat2 SAO HD 204324 M HD
ADS BDS A14990 M ADS BDS N IDS IDS 21227N3705A
HIC 105894
 
 
21268+3731 B
 
 
Coord arcsec 2000 212647.57+373107.3 Mag 9.6 Calc delta mag 1.69 Calc coord yes
CCDM
Ccdm 21268+3731 RComp Comp B Note1
Note2 Discov num SEI1516 DRAs DDEs
R dRAs Year 1895 Theta 339 Rho 4.1
Obs 1 Vmag 9.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14990 M ADS BDS N IDS IDS 21227N3705B
HIC 105894
 
 
21268+3731 C
 
 
Coord arcsec 2000 212645.99+373105.8 Mag 12.75 PmRA -4.00 PmDE -13.0
Calc delta mag 4.84 Calc coord yes
 
 
21268+3731 D
 
 
Coord arcsec 2000 212643.73+373242.4 Coord calc 212644.56+373243.0 Mag 10.37 Mag composta 9.73
PmRA 9.00 PmDE 2.0 Tycho2 3182-04392-1 Calc delta mag 2.46
Tycho2
Tycho2 3182-04392-1 Pflag RAmdeg 321.68228407 DEmdeg 37.54513389
PmRA 8.6 PmDE 2.2 E RAmdeg 12 E DEmdeg 12
E pmRA 1.3 E pmDE 1.3 EpRAm 1990.17 EpDEm 1990.22
Num 6 Q RAmdeg 0.8 Q DEmdeg 0.7 Q pmRA 0.8
Q pmDE 0.7 BTmag 10.250 E BTmag 0.023 VTmag 9.733
E VTmag 0.021 Prox 302 TYC T HIP
CCDM RAdeg 321.68225944 DEdeg 37.54512944 EpRA 1990 1.60
EpDE 1990 1.68 E RAdeg 12.4 E DEdeg 12.0 Posflg
Corr 0.0
 
 
21268+3731 Db
 
 
Coord arcsec 2000 212643.77+373242.3 Mag 10.39 PmRA 9.00 PmDE 2.0
Calc delta mag 2.48 Calc coord yes