Full White Nights

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WHS where "Full White Nights" can be experienced. The 60°34' (60.34°) latitude cutoff is roughly the southern limit where astronomical twilight lasts all night during the summer solstice. At this latitude and northward, the Sun never dips more than 18° below the horizon around the summer solstice. This means true night never occurs, as the sky remains in at least astronomical twilight (the faintest level of twilight). Locations above this latitude experience White Nights or even the Midnight Sun, depending on how far north they are.

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