| Geyser | 1974-06-20 |
|---|---|
| Constant | 1208, 1457, 1747 |
| Echinus | 0825, 0950, 1112, 1236, 1400, 1527, 1655 |
| Ledge | 1357 |
| Little Whirligig | 0945 A, 1023, 1120, 1130 ie, 1240, 1425 |
| Whirligig | 0823, 1007, 1200, 1340 |
| Values for Old Faithful Area | 1974-06-20 |
|---|---|
| Astronomical Twilight Begin | 03:09 |
| Nautical Twilight Begin | 04:12 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:38 |
| Sunset | 21:11 |
| Civil Twilight End | 21:48 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:40 |
| Moon Illumination | 0% |