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Doubles in session
Current system
20123+3540
FYM 582
Nearby doubles
5' : 20124+3545
BKO 104AB
8' : 20122+3548
SEI 992
9' : 20118+3540
SEI 979
9' : 20124+3549
TOB 177
12' : 20119+3550
SEI 985AB
12' : 20115+3545
TDT2066
12' : 20125+3552
SEI1001
12' : 20115+3539
SEI 968
13' : 20119+3551
SEI 983AB
15' : 20114+3532
TDT2064
16' : 20114+3552
HJ 1490
17' : 20113+3550
BU 430AB
17' : 20135+3551
SEI1018
17' : 20113+3551
BKO 100
19' : 20136+3553
SEI1021AB
19' : 20139+3545
COU2215
20' : 20113+3527
SEI 966
20' : 20137+3551
TDT2105
20' : 20122+3600
SEI 991
20' : 20135+3526
COU2214AB
22' : 20117+3600
SEI 978
23' : 20122+3603
SEI 994
23' : 20121+3603
SEI 990
23' : 20108+3552
SEI 954
24' : 20131+3602
SEI1014
24' : 20107+3529
RAO 427
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 20123+3540 : COMPONENTS
A
B
pa=266.7°
sep=4.90"
20123+3540 A
Coord arcsec 2000
201224.06+354030.3
Mag
12
PmRA
14.00
PmDE
-14.0
20123+3540 B
Coord arcsec 2000
201223.66+354030.0
Mag
12.8
PmRA
-3.00
PmDE
0.0
Delta magnitude
0.8
Coordinate calculated
yes