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Computed Lists
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Doubles in session
Current system
20556-4204
BRT 1116
Nearby doubles
11' : 20561-4213
UC 4335
25' : 20536-4153
BRT1115
26' : 20552-4139
UC 4327
35' : 20573-4136
UC 4343
61' : 20552-4104
UC 4326
68' : 21009-4132
WIS 346
72' : 21008-4123
B 513
78' : 21015-4246
NSN 455
79' : 21007-4111
I 1049
80' : 21028-4206
TDT2712
83' : 20517-4054
HJ 5228
92' : 21022-4300
DUN 236
102' : 21043-4233
DON 999
105' : 20583-4345
I 1048
106' : 21050-4203
CPO 619
106' : 21050-4214
UC 4372
120' : 20578-4402
DON 995
125' : 21038-4041
RSS 37
129' : 21064-4123
SEE 437AB
131' : 20523-4000
SKF1097
132' : 20561-3953
SKF1098
134' : 20492-4012
TSN 194
137' : 20487-4359
DON 993AB
139' : 20485-4359
DON 992
142' : 20555-4426
I 1430
150' : 21086-4245
SYU 12
Selections
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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 20556-4204 : COMPONENTS
A
B
pa=146.0°
sep=3.98"
20556-4204 A
Coord arcsec 2000
205535.80-420433.7
Mag
13.6
PmRA
-40.00
PmDE
26.0
20556-4204 B
Coord arcsec 2000
205536.00-420437.0
Mag
13.6
PmRA
49.00
PmDE
-73.0
Calc coord
yes