| Geyser | 2000-02-20 |
|---|---|
| Grand | 0726 E, 1832 E |
| Great Fountain | 0821 E, 1816 E |
| Lakeshore | 0912 min, 1022 min |
| Lone Pine | 1045 ie |
| Values for Old Faithful Area | 2000-02-20 |
|---|---|
| Astronomical Twilight Begin | 05:38 |
| Nautical Twilight Begin | 06:12 |
| Civil Twilight Begin | 06:46 |
| Sunrise | 07:15 |
| Sunset | 17:58 |
| Civil Twilight End | 18:27 |
| Nautical Twilight End | 19:01 |
| Astronomical Twilight End | 19:35 |
| Moon Illumination | 99.49% |