| Geyser | 1999-03-05 |
|---|---|
| Great Fountain | 0408 E, 1458 E |
| Values for Old Faithful Area | 1999-03-05 |
|---|---|
| Astronomical Twilight Begin | 05:17 |
| Nautical Twilight Begin | 05:51 |
| Civil Twilight Begin | 06:24 |
| Sunrise | 06:53 |
| Sunset | 18:16 |
| Civil Twilight End | 18:44 |
| Nautical Twilight End | 19:18 |
| Astronomical Twilight End | 19:52 |
| Moon Illumination | 91.14% |