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Geyser1981-09-02
Blue 1317
Graceful 1800
Grand1047
Steamboat 1200
Values for Old Faithful Area1981-09-02
Astronomical Twilight Begin05:03
Nautical Twilight Begin05:41
Civil Twilight Begin06:17
Sunrise06:47
Sunset19:58
Civil Twilight End20:28
Nautical Twilight End21:04
Astronomical Twilight End21:41
Moon Illumination13.31%

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