| Geyser | 1966-09-05 |
|---|---|
| Cistern Spring | 0815 |
| Ebony | 0745 ie |
| Echinus | 0830, 0925, 1019, 1113, 1208, 1358, 1453, 1548, 1643 |
| Steamboat | 0800-1540 |
| Valentine | 1316 |
| Values for Old Faithful Area | 1966-09-05 |
|---|---|
| Astronomical Twilight Begin | 05:07 |
| Nautical Twilight Begin | 05:45 |
| Civil Twilight Begin | 06:20 |
| Sunrise | 06:50 |
| Sunset | 19:53 |
| Civil Twilight End | 20:23 |
| Nautical Twilight End | 20:58 |
| Astronomical Twilight End | 21:36 |
| Moon Illumination | 76.96% |