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Geyser1983-05-20
Arsenic 1200
Bear Den2105 ie
Cistern Spring 1200
Colloidal Pool 1200
Corporal 1200
Crater Spring 1200
Dishwater Spring 1200
Dog's Leg Spring 1200
Echinus2004, 2046,  2050
Emerald Spring 1200
Graceful2110 ie
Harding 1200
Incline 1200
Mystic Spring 1200
Porkchop1921 ie
Rubble 1200
Steamboat 1200
Sunday 1200
Tantalus 1200
Values for Old Faithful Area1983-05-20
Astronomical Twilight Begin03:40
Nautical Twilight Begin04:32
Civil Twilight Begin05:16
Sunrise05:50
Sunset20:48
Civil Twilight End21:23
Nautical Twilight End22:07
Astronomical Twilight End22:59
Moon Illumination57.54%

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