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Geyser1991-05-23
Whistle 1991-05-12 0000-1991-05-24 0000
Values for Old Faithful Area1991-05-23
Astronomical Twilight Begin03:35
Nautical Twilight Begin04:28
Civil Twilight Begin05:13
Sunrise05:47
Sunset20:52
Civil Twilight End21:26
Nautical Twilight End22:11
Astronomical Twilight End23:04
Moon Illumination74.96%

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