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Keyhole satellites
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Kizimen
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NGC 281
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NGC 3109
NGC 3244
NGC 3393
NGC 346
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NGC 3603
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NGC 3628
NGC 371
NGC 3892
NGC 3982
NGC 4022
NGC 4183
NGC 4435
NGC 4438
NGC 4522
NGC 4565
NGC 4696
NGC 4698
NGC 4710
NGC 4980
NGC 5033
NGC 520
NGC 5253
NGC 5426
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NGC 5584
NGC 604
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THEMIS
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Transit of Venus
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