| Geyser | 1974-07-10 |
|---|---|
| Constant | 1620, 1748 |
| Echinus | 0750, 0917, 1035, 1450, 1615 |
| Ledge | 1145 |
| Valentine | 0700 A |
| Veteran | 1639 ie |
| Whirligig | 1057 |
| Values for Old Faithful Area | 1974-07-10 |
|---|---|
| Astronomical Twilight Begin | 03:27 |
| Nautical Twilight Begin | 04:25 |
| Civil Twilight Begin | 05:12 |
| Sunrise | 05:48 |
| Sunset | 21:08 |
| Civil Twilight End | 21:44 |
| Nautical Twilight End | 22:31 |
| Astronomical Twilight End | 23:29 |
| Moon Illumination | 72.92% |