| Geyser | 1968-08-16 |
|---|---|
| Ebony | 0000 A |
| Echinus | 0907, 0945, 1023, 1100, 1137, 1217, 1405, 1444, 1600 |
| Ledge | 0000 A |
| Values for Old Faithful Area | 1968-08-16 |
|---|---|
| Astronomical Twilight Begin | 04:35 |
| Nautical Twilight Begin | 05:17 |
| Civil Twilight Begin | 05:56 |
| Sunrise | 06:27 |
| Sunset | 20:27 |
| Civil Twilight End | 20:58 |
| Nautical Twilight End | 21:37 |
| Astronomical Twilight End | 22:19 |
| Moon Illumination | 48.5% |