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Geyser1974-09-30
Constant1045
Echinus1000, 1125, 1251, 1414, 1539
Values for Old Faithful Area1974-09-30
Astronomical Twilight Begin05:42
Nautical Twilight Begin06:17
Civil Twilight Begin06:50
Sunrise07:19
Sunset19:06
Civil Twilight End19:35
Nautical Twilight End20:09
Astronomical Twilight End20:43
Moon Illumination98.57%

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