| Geyser | 2000-02-03 |
|---|---|
| Grand | 0320 E, 1514 E |
| Great Fountain | 0024 E, 1149 E, 2141 E |
| Values for Old Faithful Area | 2000-02-03 |
|---|---|
| Astronomical Twilight Begin | 06:00 |
| Nautical Twilight Begin | 06:34 |
| Civil Twilight Begin | 07:09 |
| Sunrise | 07:39 |
| Sunset | 17:34 |
| Civil Twilight End | 18:05 |
| Nautical Twilight End | 18:39 |
| Astronomical Twilight End | 19:13 |
| Moon Illumination | 4.76% |