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Geyser1981-08-22
Morning0100, 1810
Sunday1751, 1802:24, 1813:17, 1828:04, 1830:09,  1835, 1844:30, 1848:58, 1858:19, 1908:28, 1910, 1921:38,  1930
Whirligig1952
Values for Old Faithful Area1981-08-22
Astronomical Twilight Begin04:45
Nautical Twilight Begin05:26
Civil Twilight Begin06:03
Sunrise06:34
Sunset20:17
Civil Twilight End20:48
Nautical Twilight End21:25
Astronomical Twilight End22:06
Moon Illumination54.12%

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