Geyser | 1991-05-13 |
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Whistle |  1991-05-12 0000-1991-05-24 0000 |
Values for Old Faithful Area | 1991-05-13 |
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Astronomical Twilight Begin | 03:53 |
Nautical Twilight Begin | 04:42 |
Civil Twilight Begin | 05:24 |
Sunrise | 05:58 |
Sunset | 20:41 |
Civil Twilight End | 21:14 |
Nautical Twilight End | 21:56 |
Astronomical Twilight End | 22:45 |
Moon Illumination | 1.31% |