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Geyser1977-01-02
Grand1140
Old Faithful1056, 1215, 1319, 1436, 1546 long, 1651
Values for Old Faithful Area1977-01-02
Astronomical Twilight Begin06:14
Nautical Twilight Begin06:50
Civil Twilight Begin07:26
Sunrise07:59
Sunset16:55
Civil Twilight End17:28
Nautical Twilight End18:05
Astronomical Twilight End18:40
Moon Illumination90.35%

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