hding Light Years26.1How far is it from Los Angeles to New York? Pretty far, but it can still be measured in miles orkilometers. How far is it from Earth to the Sun? It's about one hundred forty-nine million, six hundred thousandkilometers (149,600,000, or 1.496 x 10 km). Because this number is so large, and many other distances in spaceare even larger, scientists developed bigger units in order to measure them. An Astronomical Unit (AU) is4:496x 108 km (the distance from Earth to the sun). This unit is usually used to measure distances within oursolar system. To measure longer distances (like the distance between Earth and stars and other galaxies), the lightyear (ly) is used. A light year is the distance that light travels through space in one year, or 9.468 x 1012 km.28.1n theintem.EXAMPLES1. Converting light years (ly) to kilometers (km)Earth's closest star (Proxima Centauri) is about 4.22 light years away. How far is this in kilometers?Explanation/Answer: Multiply the number of kilometers in one light year (9.468 × 1012 km/ly) by thenumber of light years given (in this case, 4.22 ly).(9.468 x 10") km x 4.22 ly = 3.995 x 10 lm1 ly2. Converting kilometers to light yearsPolaris (the North Star) is about 4,07124 × 1015 km from the earth. How far is this in light years?Explanation/Answer: Divide the number of kilometers (in this case, 4.07124 x 1015 km) by the mumber ofkilometers in one light year (9.468 x 1012 km/ly).9.468 x 10121 ly1 ly9.468 x 102 kmkm4.07124 x 1015 km4.07124 x 1o kms 430 light yearsPRACTICEConvert each number of light years to kilometers.6 light years2.) 4.5 x 10° light years4 x 10-fio3 light yearsConvert each number of kilometers to light years.5.06 x 1016 km11 km6 11,003,000,000,000 km

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hding Light Years26.1How far is it from Los Angeles to New York? Pretty far, but it can still be measured in miles orkilometers. How far is it from Earth to the Sun? It's about one hundred forty-nine million, six hundred thousandkilometers (149,600,000, or 1.496 x 10 km). Because this number is so large, and many other distances in spaceare even larger, scientists developed bigger units in order to measure them. An Astronomical Unit (AU) is4:496x 108 km (the distance from Earth to the sun). This unit is usually used to measure distances within oursolar system. To measure longer distances (like the distance between Earth and stars and other galaxies), the lightyear (ly) is used. A light year is the distance that light travels through space in one year, or 9.468 x 1012 km.28.1n theintem.EXAMPLES1. Converting light years (ly) to kilometers (km)Earth's closest star (Proxima Centauri) is about 4.22 light years away. How far is this in kilometers?Explanation/Answer: Multiply the number of kilometers in one light year (9.468 × 1012 km/ly) by thenumber of light years given (in this case, 4.22 ly).(9.468 x 10&#34;) km x 4.22 ly = 3.995 x 10 lm1 ly2. Converting kilometers to light yearsPolaris (the North Star) is about 4,07124 × 1015 km from the earth. How far is this in light years?Explanation/Answer: Divide the number of kilometers (in this case, 4.07124 x 1015 km) by the mumber ofkilometers in one light year (9.468 x 1012 km/ly).9.468 x 10121 ly1 ly9.468 x 102 kmkm4.07124 x 1015 km4.07124 x 1o kms 430 light yearsPRACTICEConvert each number of light years to kilometers.6 light years2.) 4.5 x 10° light years4 x 10-fio3 light yearsConvert each number of kilometers to light years.5.06 x 1016 km11 km6 11,003,000,000,000 km

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Answered: Image /qna-images/answer/1c5662a6-4ae8-4f9c-ae42-b15b9967e7d7.jpg

6 light years 2.) 4.5 x 10° light years 3. 4x 10-fios light years Convert each number of kilometers to light years. 4.) 5.06 x 1016 km 5. 11 km (6,P 11,003,000,000,000 km