| Geyser | 1974-07-11 |
|---|---|
| Constant | 1450 |
| Echinus | 1012, 1420, 1555, 1725 |
| Ledge | 1628 |
| Palpitator Spring | 0937 |
| Values for Old Faithful Area | 1974-07-11 |
|---|---|
| Astronomical Twilight Begin | 03:29 |
| Nautical Twilight Begin | 04:26 |
| Civil Twilight Begin | 05:13 |
| Sunrise | 05:49 |
| Sunset | 21:08 |
| Civil Twilight End | 21:43 |
| Nautical Twilight End | 22:30 |
| Astronomical Twilight End | 23:28 |
| Moon Illumination | 63.87% |