| Geyser | 1949-09-04 |
|---|---|
| Giant | 1145 ie |
| Ledge | 1430 |
| Values for Old Faithful Area | 1949-09-04 |
|---|---|
| Astronomical Twilight Begin | 04:06 |
| Nautical Twilight Begin | 04:44 |
| Civil Twilight Begin | 05:19 |
| Sunrise | 05:49 |
| Sunset | 18:55 |
| Civil Twilight End | 19:24 |
| Nautical Twilight End | 20:00 |
| Astronomical Twilight End | 20:38 |
| Moon Illumination | 90.68% |