| Geyser | 1966-07-11 |
|---|---|
| Ebony | 1350, 1632 |
| Echinus | 0818, 0924, 1031, 1141, 1246, 1503, 1614 |
| Steamboat | 0820 |
| Values for Old Faithful Area | 1966-07-11 |
|---|---|
| Astronomical Twilight Begin | 03:28 |
| Nautical Twilight Begin | 04:26 |
| Civil Twilight Begin | 05:13 |
| Sunrise | 05:49 |
| Sunset | 21:08 |
| Civil Twilight End | 21:43 |
| Nautical Twilight End | 22:30 |
| Astronomical Twilight End | 23:28 |
| Moon Illumination | 46.72% |