What will be the distance of a star in kilometres if it 7 light years away from us?
Dear student,
One light year is equal to 9.461×10^12 km .
the 7 light year is equal to 7×9.461×10^12=6.62×10^13
Regards
One light year is equal to 9.461×10^12 km .
the 7 light year is equal to 7×9.461×10^12=6.62×10^13
Regards