| Geyser | 1974-09-09 |
|---|---|
| Bear Den | 1013 |
| Congress Pool | 1800 |
| Constant | 1338, 1422 |
| Dabble | 1547 |
| Echinus | 0920, 1040, 1203, 1325, 1446, 1609 |
| Little Whirligig | 0906, 1445 |
| Values for Old Faithful Area | 1974-09-09 |
|---|---|
| Astronomical Twilight Begin | 05:14 |
| Nautical Twilight Begin | 05:50 |
| Civil Twilight Begin | 06:25 |
| Sunrise | 06:55 |
| Sunset | 19:46 |
| Civil Twilight End | 20:15 |
| Nautical Twilight End | 20:50 |
| Astronomical Twilight End | 21:27 |
| Moon Illumination | 52.75% |