| Geyser | 1974-09-10 |
|---|---|
| Congress Pool | 1800 |
| Echinus | 0930, 0930, 1048, 1212, 1339, 1504, 1632 |
| Little Whirligig | 1110, 1430, 1640 |
| Values for Old Faithful Area | 1974-09-10 |
|---|---|
| Astronomical Twilight Begin | 05:15 |
| Nautical Twilight Begin | 05:51 |
| Civil Twilight Begin | 06:26 |
| Sunrise | 06:56 |
| Sunset | 19:44 |
| Civil Twilight End | 20:13 |
| Nautical Twilight End | 20:48 |
| Astronomical Twilight End | 21:25 |
| Moon Illumination | 41.67% |