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Doubles in session
Current system
20011+3940
BRT 2228
Nearby doubles
20' : 20025+3940
BRT2251
20' : 19591+3942
ES 1970AB
25' : 20027+3928
SKF1765AB
27' : 20011+3913
SEI 791
29' : 20026+3959
TDT1929
35' : 20035+3924
SEI 828AB
35' : 20038+3937
ALI1132
40' : 20015+4018
HJ 1468
40' : 19574+3931
SEI 746
42' : 20041+3957
COU2534
42' : 20044+3947
ALI1133
44' : 19573+3927
SEI 744
45' : 19576+3914
J 1069
46' : 19578+3910
HEI9014
48' : 19584+4017
GRV 301
49' : 19595+3853
ALI 912
49' : 19569+3922
SEI 742
50' : 19576+3906
MLB 981
52' : 19567+3920
MLB 880
52' : 19590+3851
SEI 763
52' : 19563+3935
SEI 740
53' : 19587+4026
KOI 643AB
53' : 20022+3849
ES 2044
54' : 20001+4032
KOI3213
54' : 19561+3937
GRV 297
55' : 19572+4014
KOI 641AB
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 20011+3940 : VIRTUAL EYEPIECE
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Radius:
auto
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8'
9'
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50'
1°
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8°
Components only
WDS 20011+3940 : ALADIN DSS IMAGE @ 20
h
00
m
49.30
s
+39° 39' 02.7"
DSS color
DSS blue
2MASS
AllWISE
GALEX
SDSS9
XMM
PanSTARRS