| Geyser | 1991-09-06 |
|---|---|
| Abyss Pool | 1415 |
| Echinus | 0945 A, 1030, 1134 maj, 1340, 1444, 1540 |
| Values for Old Faithful Area | 1991-09-06 |
|---|---|
| Astronomical Twilight Begin | 05:09 |
| Nautical Twilight Begin | 05:46 |
| Civil Twilight Begin | 06:21 |
| Sunrise | 06:51 |
| Sunset | 19:51 |
| Civil Twilight End | 20:21 |
| Nautical Twilight End | 20:56 |
| Astronomical Twilight End | 21:34 |
| Moon Illumination | 6.66% |