| Geyser | 1989-08-15 |
|---|---|
| Echinus | 0950, 1053, 1135, 1224, 1315, 1409, 1504 maj |
| Fireball | 1540 |
| Whirligig | 1340 |
| Values for Old Faithful Area | 1989-08-15 |
|---|---|
| Astronomical Twilight Begin | 04:33 |
| Nautical Twilight Begin | 05:16 |
| Civil Twilight Begin | 05:55 |
| Sunrise | 06:26 |
| Sunset | 20:28 |
| Civil Twilight End | 21:00 |
| Nautical Twilight End | 21:39 |
| Astronomical Twilight End | 22:21 |
| Moon Illumination | 95.37% |