Measuring the Moon Indirectly

by: Geoff Holt and Nancy W. West

It is difficult to measure objects in the solar system because it is so massive. In this activity, students use a cross-staff to measure the angular diameter of a paper plate 4 m away. From this, they learn to measure the actual or true diameter of distant objects, such as the Moon, that can only be measured indirectly


Type Book ChapterPub Date 3/15/2012Stock # PB298X2_1a

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