| Geyser | 1991-06-12 |
|---|---|
| Echinus | 1055, 1145, 1204 maj, 1335, 1355, 1425 min, 1435 min, 1441, 1510, 1612 |
| Fireball | 1227 |
| Whirligig | 1210, 1656 |
| Values for Old Faithful Area | 1991-06-12 |
|---|---|
| Astronomical Twilight Begin | 03:11 |
| Nautical Twilight Begin | 04:13 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:38 |
| Sunset | 21:08 |
| Civil Twilight End | 21:44 |
| Nautical Twilight End | 22:32 |
| Astronomical Twilight End | 23:34 |
| Moon Illumination | 0.11% |