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| Alphabetical [« »] objects 1 obliged 1 observation 4 observations 2 observatory 1 observe 1 observed 2 | Frequency [« »] 2 nature 2 new 2 nothing 2 observations 2 observed 2 obtain 2 once | Simon Newcomb Extent of the Universe IntraText - Concordances observations |
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1 Text, 16| widely separate epochs. Observations of sufficient precision 2 Text, 16| satisfactory way, we should have observations of 1,000,000 of these bodies