The furthest distance from the Sun to Earth is df=1.521E8
The shortest distance from the Sun to Earth is ds=1.47E8
To simplify the problem, assume that the Earth's axis is always perpendicular to the plane of its trajectory around the Sun.
The Sun always shines on half of the Earth.
There are 24 hours in a day and 365.25 days in a year.
1 answer
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