| Geyser | 1968-06-04 |
|---|---|
| Cistern Spring | 0800, 1800 |
| Values for Old Faithful Area | 1968-06-04 |
|---|---|
| Astronomical Twilight Begin | 03:17 |
| Nautical Twilight Begin | 04:16 |
| Civil Twilight Begin | 05:03 |
| Sunrise | 05:39 |
| Sunset | 21:03 |
| Civil Twilight End | 21:39 |
| Nautical Twilight End | 22:26 |
| Astronomical Twilight End | 23:25 |
| Moon Illumination | 50.52% |