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Doubles in session
Current system
20489+3503
SEI 1257 AB
Nearby doubles
12' : 20490+3451
SEI1259
14' : 20479+3456
TDT2545
14' : 20489+3449
SEI1258
25' : 20498+3442
SEI1264
28' : 20465+3504
GRV 379
29' : 20502+3441
SEI1269
30' : 20466+3452
SEI1246
31' : 20464+3511
COU1810
31' : 20466+3451
SEI1245
32' : 20499+3531
SEI1266
33' : 20493+3430
POP 51
35' : 20501+3534
TDT2567
37' : 20488+3426
SEI1256
42' : 20486+3424
ES 249
43' : 20522+3513
HO 145
44' : 20462+3533
ES 2252AB
44' : 20456+3521
TDT2520
46' : 20472+3422
BU 677AB
46' : 20494+3548
SEI1262
47' : 20521+3439
RAO 521
47' : 20471+3545
SEI1247
48' : 20485+3550
SEI1254
52' : 20452+3531
SEI1237
52' : 20481+3554
SEI1252
53' : 20449+3524
SEI1235
53' : 20451+3529
COU1809
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 20489+3503 : COMPONENTS
A
B
pa=210.1°
sep=16.89"
20489+3503 A
Coord arcsec 2000
204847.83+350307.3
Mag
10
PmRA
-2.00
PmDE
-19.0
20489+3503 B
Coord arcsec 2000
204847.14+350252.7
Mag
11
PmRA
-26.00
PmDE
9.0
Calc delta mag
1
Calc coord
yes