| Geyser | 2000-02-25 |
|---|---|
| Grand | 0456 E, 1514 E |
| Great Fountain | 0547 E, 1526 E |
| Values for Old Faithful Area | 2000-02-25 |
|---|---|
| Astronomical Twilight Begin | 05:31 |
| Nautical Twilight Begin | 06:04 |
| Civil Twilight Begin | 06:38 |
| Sunrise | 07:07 |
| Sunset | 18:05 |
| Civil Twilight End | 18:34 |
| Nautical Twilight End | 19:08 |
| Astronomical Twilight End | 19:41 |
| Moon Illumination | 67.83% |