| Geyser | 1989-09-18 |
|---|---|
| Echinus | 1025, 1100, 1131, 1215, 1300, 1420, 1500, 1525, 1620 |
| Fireball | 1100, 1300, 1450 |
| Whirligig | 1025, 1110, 1230, 1348, 1440 |
| Values for Old Faithful Area | 1989-09-18 |
|---|---|
| Astronomical Twilight Begin | 05:27 |
| Nautical Twilight Begin | 06:02 |
| Civil Twilight Begin | 06:37 |
| Sunrise | 07:06 |
| Sunset | 19:28 |
| Civil Twilight End | 19:57 |
| Nautical Twilight End | 20:31 |
| Astronomical Twilight End | 21:07 |
| Moon Illumination | 88.89% |