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Doubles in session
Current system
20531+3221
ES 2379
Nearby doubles
3' : 20534+3220
ES 2380
10' : 20540+3220
TDT2615
26' : 20525+3246
GYL 39
27' : 20535+3156
GYL 41
28' : 20553+3214
GYL 42
29' : 20529+3154
GYL 40
29' : 20548+3242
STT 418
34' : 20529+3149
A 1213
34' : 20559+3206
STT 421AB
36' : 20521+3254
TDT2591
40' : 20532+3301
ES 2356
44' : 20554+3147
TDT2630
45' : 20536+3138
HDS2976
45' : 20562+3158
ES 372
46' : 20530+3136
TDT2602
46' : 20563+3247
GYL 27
49' : 20503+3151
TDT2570
50' : 20571+3230
TDT2654
51' : 20528+3132
TDT2599
51' : 20493+3217
LDS2931AB
53' : 20573+3215
KPP1292
54' : 20491+3230
GYL 70
58' : 20533+3319
LDS2933
58' : 20577+3211
ES 2381
58' : 20528+3320
LDS2932
59' : 20539+3320
TDT2612
Selections
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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 20531+3221 : COMPONENTS
A
B
pa=114.5°
sep=7.05"
20531+3221 A
Coord arcsec 2000
205314.90+322128.7
Mag
9.4
PmRA
-3.00
PmDE
-16.0
20531+3221 B
Coord arcsec 2000
205315.41+322125.8
Mag
12.4
Delta magnitude
3
Coordinate calculated
yes