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# Angle Subtended by Sun and Moon at Earth & Angular Velocity

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The moon has a diameter of 3.48 x 10^6 m and is a distance of 3.85 x 10^8m from the earth. The sun has a diameter of 1.39 x 10^9 m and is 1.50 x 10^11 m from the earth. (a.) What are the angles (in radians) subtended by the moon and the sun, as measured by a person standing on the earth. (b.) Based on the answers to part (a.), is a total eclipse of the sun really "total"? (c.) What is the ratio (as a percentage) of the apparent circular area of the moon to the apparent circular area of the sun?

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https://brainmass.com/physics/solar-system/angle-subtended-sun-moon-earth-angular-velocity-104125

#### Solution Preview

Please see the attached file.

The moon has a diameter of 3.48 x 10^6 m and is a distance of 3.85 x 10^8m from the earth. The sun has a diameter of 1.39 x 10^9 m and is 1.50 x 10^11 m from the earth.
(a.)Waht are the angles (in radians) subtended by the moon and the sun, as measured by a person standing on the ...

#### Solution Summary

The solution is about the angle subtended by the Sun and Moon at the earth. With that the total solar eclipse is discussed.

Also the ratio of apparent area of the sun and moon seen is calculated.

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