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Geyser1959-10-17
Sapphire Pool 0600-2100
Values for Old Faithful Area1959-10-17
Astronomical Twilight Begin05:03
Nautical Twilight Begin05:37
Civil Twilight Begin06:11
Sunrise06:40
Sunset17:37
Civil Twilight End18:06
Nautical Twilight End18:40
Astronomical Twilight End19:13
Moon Illumination99.61%

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