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Geyser1981-09-15
Echinus1247
Graceful1055, 1536, 1608
Whirligig0922, 1018, 1057
Values for Old Faithful Area1981-09-15
Astronomical Twilight Begin05:23
Nautical Twilight Begin05:58
Civil Twilight Begin06:33
Sunrise07:02
Sunset19:34
Civil Twilight End20:03
Nautical Twilight End20:37
Astronomical Twilight End21:13
Moon Illumination98.3%

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