| Geyser | 1982-07-18 |
|---|---|
| Blue | 1200 |
| Cistern Spring | 1200 |
| Emerald Spring | 1200 |
| Pinto | 1200 |
| Steamboat | 1200 |
| Veteran | 1600, 1728:20 |
| Values for Old Faithful Area | 1982-07-18 |
|---|---|
| Astronomical Twilight Begin | 03:40 |
| Nautical Twilight Begin | 04:35 |
| Civil Twilight Begin | 05:20 |
| Sunrise | 05:55 |
| Sunset | 21:03 |
| Civil Twilight End | 21:38 |
| Nautical Twilight End | 22:23 |
| Astronomical Twilight End | 23:18 |
| Moon Illumination | 9.53% |