He then said boldly that it was impossible that so good an observer as Tycho could be wrong by eight minutes* and added, " out of these eight minutes we will construct a new theory that will explain the motions of all the planets. History of Astronomy - Page 51by George Forbes - 1909 - 200 pagesFull view
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Encyclopedias and dictionaries - 1922
...epicycles by an amount as great as eight minutes of arc. " Out of these eight minutes," said Kepler, - we will construct a new theory that will explain the motions of affl the planets." 26l The history of the succeeding century of astronomy need not be recapitulated...