GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1 AU
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1 Ly
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1 Km
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1 m
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Detailed explanation-1: -1 light-year = 5.88 × 1012 miles (in miles) 1 light-year = 63241 au (in astronomical units).
Detailed explanation-2: -The result: One light-year equals 5, 878, 625, 370, 000 miles (9.5 trillion km). At first glance, this may seem like an extreme distance, but the enormous scale of the universe dwarfs this length. One estimate puts the diameter of the known universe at 28 billion light-years in diameter.
Detailed explanation-3: -Light-year is the distance light travels in one year. Light zips through interstellar space at 186, 000 miles (300, 000 kilometers) per second and 5.88 trillion miles (9.46 trillion kilometers) per year.
Detailed explanation-4: -Since light travels at about 186, 300 miles per second, with 86, 400 seconds per day and about 365 days per year, that works out at about: 186300×86400×365≈5, 875, 000, 000, 000 miles.