| Geyser | 1964-08-16 |
|---|---|
| Echinus | 0741, 0845, 0953, 1053, 1151, 1301, 1404, 1509, 1615 |
| Pinwheel | 0905, 0933, 1000, 1055, 1202, 1340 |
| Splutter Pot | 1512 |
| Steamboat | 0730 |
| Values for Old Faithful Area | 1964-08-16 |
|---|---|
| Astronomical Twilight Begin | 03:35 |
| Nautical Twilight Begin | 04:17 |
| Civil Twilight Begin | 04:56 |
| Sunrise | 05:27 |
| Sunset | 19:27 |
| Civil Twilight End | 19:58 |
| Nautical Twilight End | 20:37 |
| Astronomical Twilight End | 21:19 |
| Moon Illumination | 60.84% |