| Geyser | 1978-06-25 |
|---|---|
| Echinus | 1004, 1236, 1351 |
| Values for Old Faithful Area | 1978-06-25 |
|---|---|
| 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 | 73.98% |