| Geyser | 1990-06-25 |
|---|---|
| Arsenic | 1525 |
| Constant | 1445 |
| Echinus | 0939, 1050, 1148, 1400, 1454, 1555 |
| Fireball | 1145, 1432, 1552 |
| Pearl | 0900 |
| Vixen | 0900 |
| Whirligig | 1055, 1318 |
| Values for Old Faithful Area | 1990-06-25 |
|---|---|
| Astronomical Twilight Begin | 03:11 |
| Nautical Twilight Begin | 04:14 |
| Civil Twilight Begin | 05:03 |
| Sunrise | 05:39 |
| Sunset | 21:12 |
| Civil Twilight End | 21:48 |
| Nautical Twilight End | 22:37 |
| Astronomical Twilight End | 23:40 |
| Moon Illumination | 8.28% |