| Geyser | 1961-08-24 |
|---|---|
| Colloidal Pool | 1200 |
| Echinus | 1200 |
| Steamboat | 1200 |
| Values for Old Faithful Area | 1961-08-24 |
|---|---|
| Astronomical Twilight Begin | 03:48 |
| Nautical Twilight Begin | 04:28 |
| Civil Twilight Begin | 05:06 |
| Sunrise | 05:36 |
| Sunset | 19:14 |
| Civil Twilight End | 19:45 |
| Nautical Twilight End | 20:22 |
| Astronomical Twilight End | 21:02 |
| Moon Illumination | 94.83% |