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Geyser1999-01-31
Great Fountain0323 E, 1208 E, 2338 E
Values for Old Faithful Area1999-01-31
Astronomical Twilight Begin06:02
Nautical Twilight Begin06:37
Civil Twilight Begin07:11
Sunrise07:42
Sunset17:30
Civil Twilight End18:01
Nautical Twilight End18:36
Astronomical Twilight End19:10
Moon Illumination99.82%

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