| Geyser | 1964-05-25 |
|---|---|
| Steamboat | 1030 |
| Values for Old Faithful Area | 1964-05-25 |
|---|---|
| Astronomical Twilight Begin | 02:30 |
| Nautical Twilight Begin | 03:25 |
| Civil Twilight Begin | 04:10 |
| Sunrise | 04:45 |
| Sunset | 19:54 |
| Civil Twilight End | 20:29 |
| Nautical Twilight End | 21:14 |
| Astronomical Twilight End | 22:09 |
| Moon Illumination | 98.87% |