| Geyser | 1966-08-22 |
|---|---|
| Ebony | 0940, 1525 A, 1653 ? |
| Echinus | 0815 A, 0924, 1053, 1146, 1256, 1513, 1623 |
| Harding | 0000 |
| Ledge | 1806 |
| Valentine | 0820 A |
| Values for Old Faithful Area | 1966-08-22 |
|---|---|
| Astronomical Twilight Begin | 04:45 |
| Nautical Twilight Begin | 05:25 |
| Civil Twilight Begin | 06:03 |
| Sunrise | 06:34 |
| Sunset | 20:18 |
| Civil Twilight End | 20:48 |
| Nautical Twilight End | 21:26 |
| Astronomical Twilight End | 22:07 |
| Moon Illumination | 40.47% |