| Geyser | 1964-10-04 |
|---|---|
| Arsenic | 1800 |
| Blue | 1430 |
| Colloidal Pool | 1800 |
| Echinus | 1800 |
| Fireball | 1800 |
| Hurricane Vent | 1800 |
| Pinto | 1800 |
| Pinwheel | 1800 |
| Steamboat | 1625 |
| Sunday | 1800 |
| Whirligig | 1800 |
| Values for Old Faithful Area | 1964-10-04 |
|---|---|
| Astronomical Twilight Begin | 04:48 |
| Nautical Twilight Begin | 05:22 |
| Civil Twilight Begin | 05:56 |
| Sunrise | 06:25 |
| Sunset | 17:58 |
| Civil Twilight End | 18:27 |
| Nautical Twilight End | 19:01 |
| Astronomical Twilight End | 19:35 |
| Moon Illumination | 2.2% |