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Computed Lists
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Doubles in session
Current system
21107+1909
J 2339
Nearby doubles
22' : 21091+1906
COU 329
27' : 21123+1919
TDT2825
35' : 21081+1857
J 3125
38' : 21132+1915
GWP3045
43' : 21121+1946
TDT2820
48' : 21105+1958
STF2767AB
51' : 21117+1821
LDS1051
51' : 21079+1851
HO 150
52' : 21120+1822
ZIE 12AB
57' : 21138+1942
GWP3047
63' : 21094+1809
SLN 89
67' : 21132+2006
LDS4870
69' : 21109+1801
COU 69
73' : 21061+1836
TDS1116
76' : 21058+1939
J 2702
76' : 21063+1824
BPM2326
77' : 21130+1802
J 577
81' : 21085+2025
J 574
81' : 21083+1757
BPM2332
82' : 21052+1936
HDS3005
83' : 21093+2029
J 575
86' : 21089+1748
HU 365
88' : 21138+2025
TDT2838
90' : 21080+1748
LDS4865
95' : 21102+2045
RAO 25
98' : 21041+1837
KPP 546
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 21107+1909 : COMPONENTS
A
B
pa=249.0°
sep=7.19"
21107+1909 A
Coord arcsec 2000
211035.12+190951.8
Mag
9.5
PmRA
4.00
PmDE
1.0
21107+1909 B
Coord arcsec 2000
211034.65+190949.2
Mag
12
PmRA
-7.00
PmDE
2.0
Delta magnitude
2.5
Coordinate calculated
yes