| Geyser | 1964-06-29 |
|---|---|
| Corporal | 0735 |
| Echinus | 0715, 0847, 1017, 1529, 1830 |
| Pinwheel | 1100, 1210, 1246, 1318 |
| Steamboat | 0730 |
| Valentine | 1320 |
| Values for Old Faithful Area | 1964-06-29 |
|---|---|
| Astronomical Twilight Begin | 02:14 |
| Nautical Twilight Begin | 03:16 |
| Civil Twilight Begin | 04:04 |
| Sunrise | 04:41 |
| Sunset | 20:11 |
| Civil Twilight End | 20:48 |
| Nautical Twilight End | 21:36 |
| Astronomical Twilight End | 22:39 |
| Moon Illumination | 83.84% |