| Geyser | 1966-08-14 |
|---|---|
| Blue | 0800 ie |
| Cistern Spring | 0820-1020, 1300-1800 |
| Echinus | 0827, 0938, 1050, 1202, 1314, 1425, 1535, 1645 |
| Harding | 1000 |
| Ledge | 1111 |
| Values for Old Faithful Area | 1966-08-14 |
|---|---|
| Astronomical Twilight Begin | 04:31 |
| Nautical Twilight Begin | 05:14 |
| Civil Twilight Begin | 05:53 |
| Sunrise | 06:24 |
| Sunset | 20:31 |
| Civil Twilight End | 21:02 |
| Nautical Twilight End | 21:41 |
| Astronomical Twilight End | 22:24 |
| Moon Illumination | 7.27% |