| Geyser | 1985-08-21 |
|---|---|
| Echinus | 1813 maj |
| Steamvalve Spring | 0814 |
| Veteran | 1020, 1335, 1752 |
| Vixen | 1027, 1500 A, 1700 A |
| Whirligig | 0814 |
| Values for Old Faithful Area | 1985-08-21 |
|---|---|
| Astronomical Twilight Begin | 04:44 |
| Nautical Twilight Begin | 05:24 |
| Civil Twilight Begin | 06:02 |
| Sunrise | 06:33 |
| Sunset | 20:19 |
| Civil Twilight End | 20:50 |
| Nautical Twilight End | 21:27 |
| Astronomical Twilight End | 22:08 |
| Moon Illumination | 28.38% |