Category:Double stars
The set of double stars includes both optical double stars (aka optical doubles) and true binary stars (aka "physical double stars").
This subcategory page is only for listing optical double stars.
Physical double stars should go in the subcategory Binary stars. If a double star is known to have an optical component, or if it is not known to be physical, place it here.
Many stars have optical companions, and the set of criteria for what constitutes an optical double star is not clear-cut. It is suggested that editors determine whether or not stars should be added to this category by consulting the Washington Double Star Catalog or a similar authoritative catalog of double and multiple stars.
Pages in category "Double stars"
The following 149 pages are in this category, out of approximately 321 total. This list may not reflect recent changes.
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- N Centauri
- NGC 18
- NGC 30
- NGC 32
- NGC 33
- NGC 44
- NGC 156
- NGC 158
- NGC 464
- NGC 510
- NGC 1014
- NGC 1059
- NGC 1237
- NGC 1240
- NGC 1243
- NGC 1257
- NGC 1276
- NGC 1312
- NGC 1378
- NGC 1456
- NGC 1488
- NGC 1995
- NGC 2195
- NGC 2278
- NGC 2285
- NGC 2378
- NGC 2412
- NGC 2471
- NGC 2515
- NGC 2597
- NGC 2653
- NGC 2680
- NGC 2703
- NGC 2837
- NGC 2846
- NGC 2909
- NGC 3000
- NGC 3063
- NGC 3129
- NGC 3170
- NGC 3210
- NGC 3272
- NGC 3345
- NGC 3382
- NGC 3538
- NGC 3792
- NGC 3874
- NGC 4367
- NGC 4397
- NGC 4426
- NGC 4427
- NGC 4508
- NGC 5067
- NGC 5086
- NGC 5160
- NGC 5200
- NGC 5428
- NGC 5429
- NGC 5432
- NGC 5435
- NGC 5884
- NGC 5948
- NGC 6092
- NGC 6277
- NGC 6294
- NGC 6344
- NGC 6406
- NGC 6410
- NGC 6428
- NGC 6499
- NGC 6519
- NGC 6648
- NGC 6655
- NGC 6672
- NGC 6731
- NGC 6767
- NGC 6797
- NGC 6896
- NGC 6933
- NGC 6963
- NGC 6966
- NGC 7136
- NGC 7161
- NGC 7326
- NGC 7333
- NGC 7338
- NGC 7502
- NGC 7560
- NGC 7607
- NGC 7791
- NGC 7804
- Nu Aquilae
- Nu Coronae Borealis
- Nu Ursae Majoris