| Geyser | 1990-06-27 |
|---|---|
| Constant | 1239 |
| Echinus | 1000, 1059, 1211, 1322, 1433 |
| Fireball | 1327 |
| Whirligig | 1140, 1433 |
| Values for Old Faithful Area | 1990-06-27 |
|---|---|
| Astronomical Twilight Begin | 03:12 |
| Nautical Twilight Begin | 04:15 |
| 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 | 24.12% |