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Geyser1977-09-01
Constant1025
Echinus0910, 1612
Vixen0840, 0845
Values for Old Faithful Area1977-09-01
Astronomical Twilight Begin05:02
Nautical Twilight Begin05:40
Civil Twilight Begin06:16
Sunrise06:46
Sunset20:00
Civil Twilight End20:30
Nautical Twilight End21:06
Astronomical Twilight End21:44
Moon Illumination87.4%

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