| Geyser | 1982-08-25 |
|---|---|
| Bear Den | 2105 |
| Cistern Spring | 1200 |
| Echinus | 1618, 1649 |
| Morning | 0500 |
| Steamboat | 1200 |
| Values for Old Faithful Area | 1982-08-25 |
|---|---|
| Astronomical Twilight Begin | 04:50 |
| Nautical Twilight Begin | 05:30 |
| Civil Twilight Begin | 06:07 |
| Sunrise | 06:37 |
| Sunset | 20:12 |
| Civil Twilight End | 20:43 |
| Nautical Twilight End | 21:20 |
| Astronomical Twilight End | 22:00 |
| Moon Illumination | 38.71% |