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Doubles in session
Current system
20491+3230
GYL 70
Nearby doubles
13' : 20493+3217
LDS2931AB
20' : 20483+3247
TDT2550
32' : 20487+3159
ES 369
32' : 20471+3210
ARY 61
34' : 20477+3258
COU1634
36' : 20469+3252
ARG 93
42' : 20491+3148
ES 370
43' : 20503+3151
TDT2570
44' : 20470+3156
GYL 71
44' : 20493+3314
ES 31AB
46' : 20521+3254
TDT2591
46' : 20525+3246
GYL 39
50' : 20464+3155
TDT2532
51' : 20452+3240
TDT2517
54' : 20531+3221
ES 2379
55' : 20460+3308
GYL 69
55' : 20534+3220
ES 2380
56' : 20470+3318
TDT2535
58' : 20482+3326
ES 2377
61' : 20532+3301
ES 2356
61' : 20529+3154
GYL 40
62' : 20520+3320
TDT2590
63' : 20540+3220
TDT2615
64' : 20529+3149
A 1213
65' : 20487+3334
ES 9006
66' : 20452+3146
ARY 86
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 20491+3230 : COMPONENTS
A
B
pa=187.7°
sep=61.24"
20491+3230 A
Coord arcsec 2000
204906.45+322953.1
Mag
10.08
PmRA
-10.00
PmDE
-18.0
20491+3230 B
Coord arcsec 2000
204905.80+322852.4
Mag
11.82
PmRA
19.00
PmDE
-58.0
Delta magnitude
1.74
Coordinate calculated
yes