| Geyser | 1990-08-01 |
|---|---|
| Constant | 1018 |
| Echinus | 0857 maj, 1058, 1255 maj, 1447, 1540 |
| Fireball | 1027, 1148, 1323, 1501, 1618 |
| Valentine | 1352 |
| Whirligig | 1004, 1600, 1633 |
| Values for Old Faithful Area | 1990-08-01 |
|---|---|
| Astronomical Twilight Begin | 04:07 |
| Nautical Twilight Begin | 04:55 |
| Civil Twilight Begin | 05:37 |
| Sunrise | 06:10 |
| Sunset | 20:48 |
| Civil Twilight End | 21:22 |
| Nautical Twilight End | 22:03 |
| Astronomical Twilight End | 22:51 |
| Moon Illumination | 74.27% |