| Geyser | 1990-08-18 |
|---|---|
| Echinus | 0953, 1104, 1219 maj, 1445, 1550, 2210 A |
| Incline | 1200 |
| Veteran | 1445 maj |
| Values for Old Faithful Area | 1990-08-18 |
|---|---|
| Astronomical Twilight Begin | 04:38 |
| Nautical Twilight Begin | 05:20 |
| Civil Twilight Begin | 05:58 |
| Sunrise | 06:29 |
| Sunset | 20:24 |
| Civil Twilight End | 20:55 |
| Nautical Twilight End | 21:33 |
| Astronomical Twilight End | 22:15 |
| Moon Illumination | 6.44% |