| Geyser | 1966-07-06 |
|---|---|
| Ebony | 0850, 2056 |
| Echinus | 0833, 0951, 1110, 1225, 1340, 1458, 1614, 1732 |
| Ledge | 0859 |
| Steamboat | 0800-1750 |
| Values for Old Faithful Area | 1966-07-06 |
|---|---|
| Astronomical Twilight Begin | 03:21 |
| Nautical Twilight Begin | 04:21 |
| Civil Twilight Begin | 05:09 |
| Sunrise | 05:45 |
| Sunset | 21:10 |
| Civil Twilight End | 21:46 |
| Nautical Twilight End | 22:34 |
| Astronomical Twilight End | 23:34 |
| Moon Illumination | 88.84% |