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Geyser1999-10-23
Grand0105 E, 1026 E, 2059 E
Great Fountain0616 E, 1514 E
Values for Old Faithful Area1999-10-23
Astronomical Twilight Begin06:11
Nautical Twilight Begin06:45
Civil Twilight Begin07:18
Sunrise07:48
Sunset18:26
Civil Twilight End18:56
Nautical Twilight End19:30
Astronomical Twilight End20:03
Moon Illumination96.33%

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