| Geyser | 1989-08-28 |
|---|---|
| Arsenic | 1350 |
| Constant | 1340 |
| Echinus | 0950 maj, 1142, 1400, 1450, 1545 |
| Fireball | 1030, 1315 ie, 1542 |
| Scummy Pool | 1203 ie, 1221 |
| Values for Old Faithful Area | 1989-08-28 |
|---|---|
| Astronomical Twilight Begin | 04:55 |
| Nautical Twilight Begin | 05:34 |
| Civil Twilight Begin | 06:11 |
| Sunrise | 06:41 |
| Sunset | 20:07 |
| Civil Twilight End | 20:37 |
| Nautical Twilight End | 21:13 |
| Astronomical Twilight End | 21:52 |
| Moon Illumination | 8.88% |