| Geyser | 1979-06-21 |
|---|---|
| Echinus | 0900 ie, 1037:55, 1143:45, 1300:13, 1407, 1519:30, 1628:36 maj |
| Whirligig | 0935, 1050 ? |
| Values for Old Faithful Area | 1979-06-21 |
|---|---|
| Astronomical Twilight Begin | 03:09 |
| Nautical Twilight Begin | 04:13 |
| 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 | 11.06% |