| Geyser | 1989-08-01 |
|---|---|
| Constant | 1028, 1445, 1639 |
| Echinus | 1005, 1100, 1152, 1256, 1348, 1445, 1542, 1639 |
| Fireball | 1607 |
| Values for Old Faithful Area | 1989-08-01 |
|---|---|
| Astronomical Twilight Begin | 04:07 |
| Nautical Twilight Begin | 04:55 |
| Civil Twilight Begin | 05:37 |
| Sunrise | 06:10 |
| Sunset | 20:48 |
| Civil Twilight End | 21:21 |
| Nautical Twilight End | 22:03 |
| Astronomical Twilight End | 22:51 |
| Moon Illumination | 0.2% |