| Geyser | 1963-08-08 |
|---|---|
| Steamboat | 1215 |
| Values for Old Faithful Area | 1963-08-08 |
|---|---|
| Astronomical Twilight Begin | 03:19 |
| Nautical Twilight Begin | 04:04 |
| Civil Twilight Begin | 04:45 |
| Sunrise | 05:17 |
| Sunset | 19:40 |
| Civil Twilight End | 20:12 |
| Nautical Twilight End | 20:53 |
| Astronomical Twilight End | 21:38 |
| Moon Illumination | 89.73% |