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Computed Lists
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Doubles in session
Current system
21521+2748
HO 171
HD 207931
Nearby doubles
24' : 21505+2756
AZC 116
26' : 21503+2754
MLB 576
35' : 21524+2823
NSN 67
41' : 21539+2821
WSI 8
50' : 21559+2753
HJ 1704
51' : 21536+2701
ES 523
51' : 21555+2724
A 303AB
59' : 21556+2823
MLB 577AB
60' : 21477+2740
CVR 922
63' : 21480+2819
MLB 541
64' : 21517+2852
SHN 256
67' : 21567+2721
GRV 521
68' : 21517+2856
HLD 49
70' : 21573+2738
NSN 749
70' : 21540+2852
GRV 519
72' : 21561+2701
J 854
73' : 21538+2856
MLB 495
74' : 21547+2643
CVR 924
74' : 21553+2648
A 302
75' : 21553+2850
COU 836
77' : 21468+2718
HO 608
78' : 21580+2755
KPP3375
78' : 21474+2834
A 300AB
79' : 21491+2640
LDS4912
79' : 21561+2846
COU 837AB
84' : 21510+2911
A 889AB
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.
WDS 21521+2748 HO 171 (HD 207931) : MEASURES
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