| Geyser | 1966-08-02 |
|---|---|
| Blue | 0835 ie |
| Echinus | 0923 ie, 1030, 1137, 1248, 1356, 1506, 1615 |
| Ledge | 1022 |
| Steamboat | 0800 |
| Values for Old Faithful Area | 1966-08-02 |
|---|---|
| Astronomical Twilight Begin | 04:08 |
| Nautical Twilight Begin | 04:56 |
| Civil Twilight Begin | 05:38 |
| Sunrise | 06:11 |
| Sunset | 20:47 |
| Civil Twilight End | 21:21 |
| Nautical Twilight End | 22:02 |
| Astronomical Twilight End | 22:50 |
| Moon Illumination | 99.28% |