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Geyser1999-10-20
Constant1035
Grand1223 E
Great Fountain1029 E, 1946 E
Values for Old Faithful Area1999-10-20
Astronomical Twilight Begin06:07
Nautical Twilight Begin06:41
Civil Twilight Begin07:15
Sunrise07:44
Sunset18:31
Civil Twilight End19:01
Nautical Twilight End19:34
Astronomical Twilight End20:08
Moon Illumination75.12%

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