| Geyser | 1990-09-12 |
|---|---|
| Echinus | 0800 A maj, 0950, 1040, 1140 min, 1148 maj |
| Values for Old Faithful Area | 1990-09-12 |
|---|---|
| Astronomical Twilight Begin | 05:18 |
| Nautical Twilight Begin | 05:54 |
| Civil Twilight Begin | 06:29 |
| Sunrise | 06:58 |
| Sunset | 19:40 |
| Civil Twilight End | 20:09 |
| Nautical Twilight End | 20:44 |
| Astronomical Twilight End | 21:20 |
| Moon Illumination | 45.85% |