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Geyser1981-09-11
Echinus0932, 1018
Graceful1021
Whirligig1044
Values for Old Faithful Area1981-09-11
Astronomical Twilight Begin05:17
Nautical Twilight Begin05:53
Civil Twilight Begin06:28
Sunrise06:57
Sunset19:41
Civil Twilight End20:11
Nautical Twilight End20:45
Astronomical Twilight End21:22
Moon Illumination90.16%

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