| Geyser | 1964-06-06 |
|---|---|
| Steamboat | 0900-0930 |
| Values for Old Faithful Area | 1964-06-06 |
|---|---|
| Astronomical Twilight Begin | 02:15 |
| Nautical Twilight Begin | 03:15 |
| Civil Twilight Begin | 04:03 |
| Sunrise | 04:39 |
| Sunset | 20:04 |
| Civil Twilight End | 20:40 |
| Nautical Twilight End | 21:28 |
| Astronomical Twilight End | 22:28 |
| Moon Illumination | 20.91% |