| Geyser | 1974-07-08 |
|---|---|
| Constant | 0922, 1020, 1601 |
| Echinus | 0825, 0953, 1135, 1300, 1437, 1600 |
| Ledge | 1640 |
| Little Whirligig | 1415, 1540 ie, 1800 |
| Whirligig | 0850 A, 0938, 1400 A, 1453, 1800 |
| Values for Old Faithful Area | 1974-07-08 |
|---|---|
| Astronomical Twilight Begin | 03:24 |
| Nautical Twilight Begin | 04:23 |
| Civil Twilight Begin | 05:10 |
| Sunrise | 05:46 |
| Sunset | 21:09 |
| Civil Twilight End | 21:45 |
| Nautical Twilight End | 22:32 |
| Astronomical Twilight End | 23:32 |
| Moon Illumination | 87.87% |