Light from the sun reaches the earth in approximately eight minutes. a dwarf planet is discovered twelve au from the sun. approximately how long does it take light to reach this object from the sun?

One AU is the distance from the Earth to the Sun. (So you could say one AU (or astronomical unit) is about eight light minutes) So, multiplying eight (the approximate time it takes for the light from the Sun to hit the Earth) by twelve, (the distance said Dwarf Planet is from the Sun in AU) you get 96 light minutes, or 1 light hour and 39 light minutes.

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