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Geyser1991-07-15
Echinus0900, 0952, 1027 maj, 1340 maj, 1515
Whirligig1010, 1450, 1538
Values for Old Faithful Area1991-07-15
Astronomical Twilight Begin03:35
Nautical Twilight Begin04:31
Civil Twilight Begin05:17
Sunrise05:52
Sunset21:05
Civil Twilight End21:41
Nautical Twilight End22:26
Astronomical Twilight End23:23
Moon Illumination16.54%

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