| Geyser | 1966-06-25 |
|---|---|
| Blue | 0930 ie |
| Cistern Spring | 1800 |
| Ebony | 1050, 1641 |
| Echinus | 0838, 1003, 1126, 1248, 1411, 1534, 1656 |
| Ledge | 1720, 1800 |
| Steamboat | 1700 |
| Values for Old Faithful Area | 1966-06-25 |
|---|---|
| Astronomical Twilight Begin | 03:11 |
| Nautical Twilight Begin | 04:14 |
| Civil Twilight Begin | 05:02 |
| Sunrise | 05:39 |
| Sunset | 21:12 |
| Civil Twilight End | 21:48 |
| Nautical Twilight End | 22:37 |
| Astronomical Twilight End | 23:40 |
| Moon Illumination | 46.41% |