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Doubles in session


Current system
21426+4103
BU 688 AB


Nearby doubles
3' : 21424+4105
KUI 108AB

8' : 21422+4057
DAM 231

13' : 21419+4058
MLB 30

19' : 21416+4048
S 796AB

21' : 21431+4122
COU1978

21' : 21412+4117
COU1977

35' : 21456+4110
TDT3144

37' : 21396+4049
MLB 29

41' : 21408+4027
TDT3102

43' : 21417+4022
TDT3111

43' : 21431+4021
TDT3121

50' : 21458+4029
ES 1693

54' : 21395+4144
BU 449AB

57' : 21461+4143
TDT3148

66' : 21409+4205
TDT3104

69' : 21456+4202
TDT3143

69' : 21365+4105
TDT3055

71' : 21473+4148
A 404AB

72' : 21380+4153
A 402

73' : 21373+4145
GRV 486

75' : 21369+4025
DRS 20

75' : 21361+4048
TDT3051

76' : 21454+3955
SEI1534

76' : 21398+4211
TDT3094

78' : 21494+4058
TDT3178

84' : 21393+3948
KPP4241



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 21426+4103 : COMPONENTS
 
 
  A B C
B pa=193.6°
sep=0.40"
 
C pa=23.1°
sep=25.59"
pa=23.0°
sep=25.98"
 
D pa=314.1°
sep=39.64"
pa=314.6°
sep=39.84"
pa=276.0°
sep=38.70"
 
 
21426+4103 A
 
 
Coord arcsec 2000 214233.41+410251.0 Mag 8.1 Spectral class F2V (yellow-white) PmRA 26.00
PmDE -1.0 SAO 51212 HIP 107177 Tycho2 3188-00957-1
HD 206656 GC 30402 BD BD+40 4617
Tycho2
Tycho2 3188-00957-1 Pflag RAmdeg 325.63927035 DEmdeg 41.04744532
PmRA 26.2 PmDE -0.9 E RAmdeg 4 E DEmdeg 4
E pmRA 0.9 E pmDE 1.0 EpRAm 1991.43 EpDEm 1991.46
Num 11 Q RAmdeg 1.2 Q DEmdeg 0.8 Q pmRA 1.3
Q pmDE 0.9 BTmag 7.995 E BTmag 0.016 VTmag 7.626
E VTmag 0.010 Prox 999 TYC T HIP 107177
CCDM AB RAdeg 325.63919083 DEdeg 41.04744750 EpRA 1990 1.73
EpDE 1990 1.70 E RAdeg 4.4 E DEdeg 4.4 Posflg P
Corr 0.1
SAO
SAO 51212 DelFlag RA1950 PmRA1950 0.0028
DE1950 PmDE1950 0.007 Vmag 7.5 SpType F0
Double code Source 70 CatNum 30402 DM BD+40 4617
DMcomp BDsup HD 206656 M HD 0
GC 30402 RA1950rad 5.67467971 DE1950rad 0.71241485 PmRA2000 0.003
PmDE2000 0.003
Hipparcos
Catalog H HIP 107177 Proxy H RAhms 21 42 33.41
DEdms +41 02 51.0 Vmag 7.55 VarFlag R Vmag H
RAdeg 325.639 DEdeg 41.0475 AstroRef A Plx 8.82
CCDM 21426+4103 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 203 Rho 0.369 HD 206656 BD BD+40 4617
CD CP Dm number +40 4617 VIred 0.41
SpType F0 R SpType Coord arcsec 2000 214233.41+410251.0
Hipparcos 2
HIP 107177 Sn 15 So 3 Nc 2
RArad 5.683476401 DErad 0.7164139358 Plx 8.3 PmRA 26.18
PmDE 0.04 E RArad 0.44 E DErad 0.57 E Plx 0.71
E pmRA 0.49 E pmDE 0.72 Hpmag 7.6387 E Hpmag 0.001
SHp 0.012 VA 0 BV 0.365 E BV 0.01
VI 0.43
CCDM
Ccdm 21426+4103 RComp Comp A Note1
Note2 Discov num DRAs -2.60 DDEs -10.0
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.3 Sp F0 PmNote *
PmRA 21 PmDE -12 Dm number +40 4617 Cat1 BD
Name2 +40 2248 Cat2 AGK2/3 HD 206656 M HD
ADS BDS A15251 M ADS BDS N IDS IDS 21385N4035A
HIC 107177
 
 
21426+4103 B
 
 
Coord arcsec 2000 214233.40+410250.6 Mag 8.62 PmRA 26.00 PmDE -1.0
Calc delta mag 0.52 Calc coord yes
CCDM
Ccdm 21426+4103 RComp Comp B Note1 *
Note2 Discov num BU 688 DRAs DDEs
R dRAs Year 1959 Theta 210 Rho 0.3
Obs 24 Vmag 8.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15251 M ADS BDS N N IDS IDS 21385N4035B
HIC 107177
 
 
21426+4103 C
 
 
Coord arcsec 2000 214234.30+410314.5 Mag 11.9 PmRA -2.00 PmDE -8.0
Calc delta mag 3.8 Calc coord yes
CCDM
Ccdm 21426+4103 RComp Comp C Note1
Note2 Discov num BU 688 DRAs DDEs
R dRAs Year 1914 Theta 034 Rho 29.3
Obs 1 Vmag 11.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15251 M ADS BDS N IDS IDS 21385N4035C
HIC
 
 
21426+4103 D
 
 
Coord arcsec 2000 214230.90+410318.6 Mag 13.78 PmRA -8.00 PmDE -5.0
Calc delta mag 5.68 Calc coord yes