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Geyser1991-05-13
Whistle 1991-05-12 0000-1991-05-24 0000
Values for Old Faithful Area1991-05-13
Astronomical Twilight Begin03:53
Nautical Twilight Begin04:42
Civil Twilight Begin05:24
Sunrise05:58
Sunset20:41
Civil Twilight End21:14
Nautical Twilight End21:56
Astronomical Twilight End22:45
Moon Illumination1.31%

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