A light year measures distance, not time.Distances in space are often described as light years , the distance light travels in a year.
Body | Light reaches Earth In
Moon - 1.26seconds
Sun- 8 minutes 17 seconds
Pluto- 5 hours 20 minutes
Nearest star- 4.22 years
Distance at which the sun
is not visible to us- 60 years
Most distant star in our galaxy-62,700 years
From nearest body outside our
galaxy- 174,ooo years
Furthest visible star- 2,309,000 years
Most distant known quasar- 14,000,000,000 years
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