3- Define light year. What quantity does it measure? what is one light year equal to in sl unit?​

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3- Define light year. What quantity does it measure? what is one light year equal to in sl unit?​

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Khải Quang 6 months 2021-07-16T21:03:27+00:00 1 Answers 7 views 0

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    2021-07-16T21:05:25+00:00

    The light-year is a unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometres (9.46×1012 km) or 5.88 trillion miles (5.88×1012 mi).
    Astronomical units: 63241 au; 0.3066 pc
    Metric (SI) units: 9.4607×1015 m; 9.46075 Pm
    Imperial & US units: 5.8786×1012 mi

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