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Geyser1977-07-23
Echinus0945, 1045, 1429, 1608
Little Whirligig0840, 1240
Whirligig1320 A
Values for Old Faithful Area1977-07-23
Astronomical Twilight Begin03:50
Nautical Twilight Begin04:42
Civil Twilight Begin05:26
Sunrise06:00
Sunset20:58
Civil Twilight End21:33
Nautical Twilight End22:17
Astronomical Twilight End23:09
Moon Illumination43.73%

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