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Geyser1991-12-31
Fantail 1991-10-20 0000-1992-05-01 2359
Values for Old Faithful Area1991-12-31
Astronomical Twilight Begin06:14
Nautical Twilight Begin06:49
Civil Twilight Begin07:26
Sunrise07:59
Sunset16:53
Civil Twilight End17:26
Nautical Twilight End18:02
Astronomical Twilight End18:38
Moon Illumination19.19%

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