| Geyser | 1999-06-08 |
|---|---|
| Constant | 1348, 1442 |
| Echinus | 1320, 1502 |
| Grand | 1115 E, 2211 E |
| Great Fountain | 0843 E, 1913 E |
| Lone Pine | 1321 E |
| Pinto | 1805 |
| Values for Old Faithful Area | 1999-06-08 |
|---|---|
| Astronomical Twilight Begin | 03:14 |
| Nautical Twilight Begin | 04:14 |
| Civil Twilight Begin | 05:02 |
| Sunrise | 05:38 |
| Sunset | 21:05 |
| Civil Twilight End | 21:42 |
| Nautical Twilight End | 22:29 |
| Astronomical Twilight End | 23:30 |
| Moon Illumination | 38.32% |