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Geyser1973-04-12
Africa0858, 0915, 0933, 0951, 1009, 1027, 1048, 1108, 1127, 1149 min, 1154, 1214, 1232
Arsenic1035, 1415, 1715
Bear Den0854, 1115
Constant1054
Hurricane Vent 1800
Ledge0848
Little Whirligig0915, 1047, 1233
Valentine2245 A
Values for Old Faithful Area1973-04-12
Astronomical Twilight Begin03:59
Nautical Twilight Begin04:37
Civil Twilight Begin05:13
Sunrise05:44
Sunset19:04
Civil Twilight End19:34
Nautical Twilight End20:10
Astronomical Twilight End20:48
Moon Illumination72.55%

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