| Geyser | 1990-08-07 |
|---|---|
| Bear Den | 1340 |
| Constant | 1149, 1354 |
| Echinus | 0913 maj, 1130, 1237 |
| Fireball | 1009, 1132, 1247 |
| Whirligig | 1124, 1205, 1334 |
| Values for Old Faithful Area | 1990-08-07 |
|---|---|
| Astronomical Twilight Begin | 04:18 |
| Nautical Twilight Begin | 05:04 |
| Civil Twilight Begin | 05:44 |
| Sunrise | 06:17 |
| Sunset | 20:41 |
| Civil Twilight End | 21:13 |
| Nautical Twilight End | 21:53 |
| Astronomical Twilight End | 22:39 |
| Moon Illumination | 99.52% |