| Geyser | 1990-06-18 |
|---|---|
| Constant | 1224 |
| Dark Cavern | 1130, 1205 |
| Echinus | 0800, 0945, 1040, 1134, 1234 maj, 1430 |
| Fireball | 1040, 1206, 1314 |
| Guardian | 1153 |
| Valentine | 1151 |
| Whirligig | 1149 |
| Values for Old Faithful Area | 1990-06-18 |
|---|---|
| Astronomical Twilight Begin | 03:09 |
| Nautical Twilight Begin | 04:12 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:38 |
| Sunset | 21:10 |
| Civil Twilight End | 21:47 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:39 |
| Moon Illumination | 27.54% |