| Geyser | 1984-06-12 |
|---|---|
| Arsenic | 1200 |
| Constant | 1445 |
| Crater Spring | 1200 |
| Echinus | 1615, 1707, 2348 |
| Fireball | 1200 |
| Steamboat | 1200, 2350 maj |
| Values for Old Faithful Area | 1984-06-12 |
|---|---|
| Astronomical Twilight Begin | 03:10 |
| Nautical Twilight Begin | 04:13 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:38 |
| Sunset | 21:08 |
| Civil Twilight End | 21:44 |
| Nautical Twilight End | 22:33 |
| Astronomical Twilight End | 23:35 |
| Moon Illumination | 97.77% |