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Geyser1981-09-12
Basin 1200
Constant 1200
Jetsam Pool 1200
Little Whirligig 1200
Pequito 1200
Pinwheel 1200
Splutter Pot 1200
Whirligig1250:30,  1310
Values for Old Faithful Area1981-09-12
Astronomical Twilight Begin05:18
Nautical Twilight Begin05:54
Civil Twilight Begin06:29
Sunrise06:59
Sunset19:39
Civil Twilight End20:09
Nautical Twilight End20:43
Astronomical Twilight End21:20
Moon Illumination95.6%

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