| Geyser | 1967-07-17 |
|---|---|
| Echinus | 0824, 0916, 1008, 1058, 1147, 1246, 1437, 1624, 1800 |
| Valentine | 1540 ie |
| Values for Old Faithful Area | 1967-07-17 |
|---|---|
| Astronomical Twilight Begin | 03:38 |
| Nautical Twilight Begin | 04:33 |
| Civil Twilight Begin | 05:19 |
| Sunrise | 05:54 |
| Sunset | 21:04 |
| Civil Twilight End | 21:39 |
| Nautical Twilight End | 22:24 |
| Astronomical Twilight End | 23:20 |
| Moon Illumination | 77.98% |