| Geyser | 1991-06-26 |
|---|---|
| Echinus | 0814 maj, 1027, 1140 maj, 1215, 1433, 1526 min, 1546 maj |
| Ledge Spring | 1450 |
| Whirligig | 1015, 1340 |
| Values for Old Faithful Area | 1991-06-26 |
|---|---|
| Astronomical Twilight Begin | 03:11 |
| Nautical Twilight Begin | 04:14 |
| Civil Twilight Begin | 05:03 |
| Sunrise | 05:40 |
| Sunset | 21:12 |
| Civil Twilight End | 21:48 |
| Nautical Twilight End | 22:37 |
| Astronomical Twilight End | 23:40 |
| Moon Illumination | 99.3% |