| Geyser | 2000-02-05 |
|---|---|
| Grand | 0208 E, 1502 E |
| Great Fountain | 0307 E, 1357 E |
| Values for Old Faithful Area | 2000-02-05 |
|---|---|
| Astronomical Twilight Begin | 05:58 |
| Nautical Twilight Begin | 06:32 |
| Civil Twilight Begin | 07:06 |
| Sunrise | 07:37 |
| Sunset | 17:37 |
| Civil Twilight End | 18:07 |
| Nautical Twilight End | 18:42 |
| Astronomical Twilight End | 19:16 |
| Moon Illumination | 0.06% |