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Geyser1974-09-17
Echinus0855, 1019, 1141, 1432, 1552, 1715
Little Whirligig0940 A, 1145 A, 1747
Values for Old Faithful Area1974-09-17
Astronomical Twilight Begin05:25
Nautical Twilight Begin06:00
Civil Twilight Begin06:35
Sunrise07:04
Sunset19:31
Civil Twilight End20:00
Nautical Twilight End20:34
Astronomical Twilight End21:10
Moon Illumination1.85%

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