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Geyser1981-07-16
Arsenic1036
Constant0918, 1022, 1231
Dark Cavern0830
Whirligig0920, 0954, 1118, 1157, 1232
Values for Old Faithful Area1981-07-16
Astronomical Twilight Begin03:37
Nautical Twilight Begin04:33
Civil Twilight Begin05:18
Sunrise05:53
Sunset21:04
Civil Twilight End21:39
Nautical Twilight End22:25
Astronomical Twilight End23:20
Moon Illumination99.07%

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