A star is 4.3 light years away from the earth . what does it mean?
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it means that star cannot be expressed in km. because star more far away from the earth
1 light year = 9•46×10raise to the power 12
4•3 light year means 4•3×9•46×10 raise to the power 12 =40•678×10 raise to the power 12
4•0678×10raise to the power 13
4•7×10 raise to the power 13 (approx).
1 light year = 9•46×10raise to the power 12
4•3 light year means 4•3×9•46×10 raise to the power 12 =40•678×10 raise to the power 12
4•0678×10raise to the power 13
4•7×10 raise to the power 13 (approx).
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