The crescent Moon always points toward the Sun. You can use this fact to estimate your latitude. Down by the equator (0? latitude), the setting crescent Moon lies flat on the horizon, while up close to the North Pole (90? latitude), the crescent Moon stands on its end. Deviations to this can arise because of Earth?s 23? tilt and because the Moon?s orbit lies 5? outside the ecliptic. Nonetheless, those who live in Alaska see a crescent Moon that is much more upright than those who live in Hawaii. With this in mind, next time you see the crescent Moon close to the horizon, look carefully at its angle and try correlating that angle to your local latitude.

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To Sun To Sun