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Geyser1977-09-17
Emerald Spring 1800
Values for Old Faithful Area1977-09-17
Astronomical Twilight Begin05:25
Nautical Twilight Begin06:01
Civil Twilight Begin06:35
Sunrise07:04
Sunset19:30
Civil Twilight End19:59
Nautical Twilight End20:34
Astronomical Twilight End21:09
Moon Illumination18.03%

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