| Geyser | 1999-11-05 |
|---|---|
| Grand | 1250 E |
| Great Fountain | 0134 E, 1045 E, 2134 E |
| Values for Old Faithful Area | 1999-11-05 |
|---|---|
| Astronomical Twilight Begin | 05:26 |
| Nautical Twilight Begin | 06:00 |
| Civil Twilight Begin | 06:35 |
| Sunrise | 07:05 |
| Sunset | 17:07 |
| Civil Twilight End | 17:38 |
| Nautical Twilight End | 18:12 |
| Astronomical Twilight End | 18:46 |
| Moon Illumination | 7.79% |