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Geyser1981-08-31
Arsenic1229
Echinus1403:40, 1554:54
Fan and Mortar1030
Morning1111, 2250
Splutter Pot 1800
Whirligig1747
Values for Old Faithful Area1981-08-31
Astronomical Twilight Begin05:00
Nautical Twilight Begin05:38
Civil Twilight Begin06:15
Sunrise06:45
Sunset20:01
Civil Twilight End20:31
Nautical Twilight End21:08
Astronomical Twilight End21:46
Moon Illumination2.95%

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