Tycho Made Angular Measurements with an Accuracy of One Arcminute

question 286

Multiple Choice

Tycho made angular measurements with an accuracy of one arcminute. If Mars takes 2.136 years to complete one orbit of the Sun as viewed from Earth (a synodic period) , how long on the average does it take Mars to move through one arcminute?

• A) 1 second
• B) a little less than 1 hour
• C) about a day and a half
• D) 17 days

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