| Geyser | 1964-10-10 |
|---|---|
| Constant | 1800 |
| Echinus | 0825, 0940, 1103, 1347, 1509 |
| Pinwheel | 1800 |
| Steamboat | 0950-1545 |
| Valentine | 1420 |
| Values for Old Faithful Area | 1964-10-10 |
|---|---|
| Astronomical Twilight Begin | 04:56 |
| Nautical Twilight Begin | 05:29 |
| Civil Twilight Begin | 06:03 |
| Sunrise | 06:32 |
| Sunset | 17:47 |
| Civil Twilight End | 18:16 |
| Nautical Twilight End | 18:50 |
| Astronomical Twilight End | 19:24 |
| Moon Illumination | 19.95% |