| Geyser | 1967-07-18 |
|---|---|
| Ebony | 1620 |
| Echinus | 0847, 0943, 1039, 1135, 1230, 1357, 1423, 1520, 1617, 1715 |
| Harding | 1845 |
| Values for Old Faithful Area | 1967-07-18 |
|---|---|
| Astronomical Twilight Begin | 03:40 |
| Nautical Twilight Begin | 04:34 |
| Civil Twilight Begin | 05:20 |
| Sunrise | 05:55 |
| Sunset | 21:03 |
| Civil Twilight End | 21:38 |
| Nautical Twilight End | 22:23 |
| Astronomical Twilight End | 23:18 |
| Moon Illumination | 86.64% |