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East is the direction towards which the Earth rotates. It will appear that the Sun rises in the East, but since the Earth is tilted 22.5 degrees with respect to the plane of the ecliptic, the Sun will actually rise at different points each day, as the Earth orbits around the sun in its yearly cycle. On the Vernal and Autumnal Equinoxes, since the Earth's axix is tangent to the ellipsoid of its orbit around the Sun, the Sun will appear to rise due East. (And set due West) You can determine East by monitoring where the stars rise, but don't forget that only applies at star-rise because of the 22.5 degree tilt. (Actually, its the same apparent error with the Sun, but because of the distance to the stars, the error is inconsequential.)

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16y ago

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