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Geyser1981-09-09
Arsenic1040, 1627
Echinus1114, 1242
Graceful1045, 1140, 1428, 1516, 1602, 1648, 1732
Veteran1114
Whirligig1649, 1734
Values for Old Faithful Area1981-09-09
Astronomical Twilight Begin05:14
Nautical Twilight Begin05:51
Civil Twilight Begin06:26
Sunrise06:55
Sunset19:45
Civil Twilight End20:14
Nautical Twilight End20:49
Astronomical Twilight End21:26
Moon Illumination74.91%

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