| Geyser | 1979-07-15 |
|---|---|
| Arsenic | 0830 ie |
| Constant | 1421 |
| Echinus | 0905 ie, 1130, 1330, 1445, 1551 |
| Fireball | 1030 |
| Little Whirligig | 0845, 1025, 1419 |
| Moxie | 1030 min |
| Pinwheel | 1656 min |
| Veteran | 0918 |
| Whirligig | 1100, 1330 |
| Values for Old Faithful Area | 1979-07-15 |
|---|---|
| Astronomical Twilight Begin | 03:35 |
| Nautical Twilight Begin | 04:31 |
| Civil Twilight Begin | 05:17 |
| Sunrise | 05:52 |
| Sunset | 21:05 |
| Civil Twilight End | 21:41 |
| Nautical Twilight End | 22:26 |
| Astronomical Twilight End | 23:23 |
| Moon Illumination | 63.44% |