| Geyser | 1990-08-25 |
|---|---|
| Echinus | 1055 maj, 1257, 1355, 1455 |
| Fireball | 1509 |
| Little Whirligig | 1330 |
| Whirligig | 1410 |
| Values for Old Faithful Area | 1990-08-25 |
|---|---|
| Astronomical Twilight Begin | 04:50 |
| Nautical Twilight Begin | 05:30 |
| Civil Twilight Begin | 06:07 |
| Sunrise | 06:37 |
| Sunset | 20:12 |
| Civil Twilight End | 20:43 |
| Nautical Twilight End | 21:20 |
| Astronomical Twilight End | 22:00 |
| Moon Illumination | 22.32% |