Earth Key Words 3.5 / 5 based on 2 ratings ? AstronomyGCSEAll boards Created by: maddyCreated on: 27-04-13 17:42 23 hours 54 minutes long Sidereal day 1 of 5 Shape of the Earth Squashed sphere 2 of 5 Average diameter of Earth in km 13,000 3 of 5 First astronomer to make an accurate calculation of the circumference of the Earth Eratosthenes 4 of 5 Polaris is the .... star North 5 of 5
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