| Geyser | 1949-08-29 |
|---|---|
| Ebony | 1000 |
| Ledge | 1510 |
| Values for Old Faithful Area | 1949-08-29 |
|---|---|
| Astronomical Twilight Begin | 03:57 |
| Nautical Twilight Begin | 04:35 |
| Civil Twilight Begin | 05:12 |
| Sunrise | 05:42 |
| Sunset | 19:05 |
| Civil Twilight End | 19:36 |
| Nautical Twilight End | 20:12 |
| Astronomical Twilight End | 20:51 |
| Moon Illumination | 33.29% |