| Geyser | 1964-08-14 |
|---|---|
| Cistern Spring | 1800 |
| Congress Pool | 1800 |
| Echinus | 0810, 0934, 1055, 1222, 1346, 1512, 1640 |
| Pinwheel | 0916, 0942, 1145, 1209, 1327, 1446, 1740 |
| Steamboat | 1800 |
| Valentine | 0000 A |
| Values for Old Faithful Area | 1964-08-14 |
|---|---|
| Astronomical Twilight Begin | 03:31 |
| Nautical Twilight Begin | 04:14 |
| Civil Twilight Begin | 04:53 |
| Sunrise | 05:25 |
| Sunset | 19:30 |
| Civil Twilight End | 20:01 |
| Nautical Twilight End | 20:40 |
| Astronomical Twilight End | 21:23 |
| Moon Illumination | 41.75% |