| Geyser | 1964-09-04 |
|---|---|
| Bear Den | 1835 |
| Ebony | 1835 maj |
| Echinus | 0853, 1000, 1114, 1225, 1322, 1422, 1521 |
| Steamboat | 0830-1600 |
| Values for Old Faithful Area | 1964-09-04 |
|---|---|
| Astronomical Twilight Begin | 04:07 |
| Nautical Twilight Begin | 04:44 |
| Civil Twilight Begin | 05:20 |
| Sunrise | 05:49 |
| Sunset | 18:54 |
| Civil Twilight End | 19:24 |
| Nautical Twilight End | 19:59 |
| Astronomical Twilight End | 20:37 |
| Moon Illumination | 4.63% |