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Geyser1987-01-21
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Values for Old Faithful Area1987-01-21
Astronomical Twilight Begin06:10
Nautical Twilight Begin06:45
Civil Twilight Begin07:20
Sunrise07:52
Sunset17:16
Civil Twilight End17:48
Nautical Twilight End18:24
Astronomical Twilight End18:58
Moon Illumination67.14%

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