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Geyser1991-07-28
Crater Spring 1200
Echinus1034, 1110 maj, 1300, 1445, 1550
Plume1117
Yellow Funnel Spring 1200
Values for Old Faithful Area1991-07-28
Astronomical Twilight Begin03:59
Nautical Twilight Begin04:49
Civil Twilight Begin05:31
Sunrise06:05
Sunset20:53
Civil Twilight End21:27
Nautical Twilight End22:10
Astronomical Twilight End23:00
Moon Illumination97.94%

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