| Geyser | 1991-06-11 |
|---|---|
| Arsenic | 1015 A, 1300 |
| Constant | 1405 |
| Echinus | 1115 maj, 1258, 1413, 1512 maj |
| Fireball | 1214, 1244, 1551, 1623 |
| Values for Old Faithful Area | 1991-06-11 |
|---|---|
| Astronomical Twilight Begin | 03:11 |
| Nautical Twilight Begin | 04:13 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:38 |
| Sunset | 21:07 |
| Civil Twilight End | 21:44 |
| Nautical Twilight End | 22:32 |
| Astronomical Twilight End | 23:33 |
| Moon Illumination | 2.44% |