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Current system
20557+7648
UC 4331


Nearby doubles
7' : 20546+7653
LOC 460

18' : 20512+7656
SLW1227

38' : 21066+7648
LOC 473

38' : 20562+7611
UC 4336

46' : 21067+7623
KPP1325

53' : 21087+7718
LOC 475

53' : 21040+7604
SLW1229

55' : 21092+7719
LOC 474

57' : 21121+7700
LOC 570AB

61' : 20550+7547
LDS1942

63' : 21140+7646
LDS1946

65' : 21121+7619
STT 436

78' : 21089+7752
LOC 476

92' : 20491+7818
LOC 463

94' : 20485+7517
LDS1940

96' : 20592+7823
CON 38

98' : 20374+7536
HEI 7

102' : 21037+7827
KPP4222

113' : 21057+7501
TDT2739

115' : 20593+7455
A 878

115' : 20500+7455
VKI 38

125' : 21156+7836
STF2796

129' : 21021+7855
LOC 477

133' : 20499+7900
LOC 464

138' : 21002+7432
CBL 530

142' : 20485+7429
MLR 238



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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 20557+7648 : COMPONENTS
 
 
  A
B pa=9.0°
sep=12.98"
 
 
20557+7648 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205543.64+764825.6 Mag 13.8 PmRA 36.00
PmDE 46.0
 
 
20557+7648 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205544.23+764838.4 Mag 15.6 PmRA 36.00
PmDE 44.0 Calc delta mag 1.8 Calc coord yes