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Geyser1980-09-21
Echinus1200 min, 1207:47,  1224-1232, 1424 min, 1432:45
Little Whirligig1611 ie,  1800
Whirligig1629
Values for Old Faithful Area1980-09-21
Astronomical Twilight Begin05:31
Nautical Twilight Begin06:06
Civil Twilight Begin06:40
Sunrise07:09
Sunset19:22
Civil Twilight End19:51
Nautical Twilight End20:25
Astronomical Twilight End21:00
Moon Illumination85.46%

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