| Geyser | 1964-07-25 |
|---|---|
| Blue | 0915 |
| Ebony | 1900 |
| Echinus | 0736, 0859, 1030, 1159, 1329, 1456, 1626 |
| Pinwheel | 1553 |
| Steamboat | 0730-1700 |
| Valentine | 1030, 2230 |
| Values for Old Faithful Area | 1964-07-25 |
|---|---|
| Astronomical Twilight Begin | 02:54 |
| Nautical Twilight Begin | 03:45 |
| Civil Twilight Begin | 04:28 |
| Sunrise | 05:02 |
| Sunset | 19:56 |
| Civil Twilight End | 20:30 |
| Nautical Twilight End | 21:14 |
| Astronomical Twilight End | 22:05 |
| Moon Illumination | 99.61% |