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Geyser1964-10-16
Arsenic 1800
Constant 1800
Dark Cavern 1800
Echinus1408, 1556
Emerald Spring 1800
Fireball 1800
Hurricane Vent 1800
Ledge 1800
Monarch 1800
Pinto 1800
Pinwheel 1800
Steamboat 1800
Whirligig 1800
Values for Old Faithful Area1964-10-16
Astronomical Twilight Begin05:03
Nautical Twilight Begin05:37
Civil Twilight Begin06:10
Sunrise06:40
Sunset17:37
Civil Twilight End18:06
Nautical Twilight End18:40
Astronomical Twilight End19:14
Moon Illumination74.2%

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