- Can you see how Aristarchus deduced these values?
- What size error must Aristarchus have made in measuring the angle between the sun and the moon at the first quarter?
Aristarchus (310 - 230 BC) estimated the sun - earth distance to be 20 times the earth - moon distance and the sun to be 7 times larger than the earth. Check how close Aristarchus was to modern day values.
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