| Geyser | 1987-08-16 |
|---|---|
| Echinus | 1116:21, 1215:46, 1313:01, 1408:00 maj, 1622, 1709:10 |
| Vixen | 1154, 1233:28, 1312:32, 1353:33, 1434:49, 1512:40, 1551:30, 1631:03, 1711:44, 1752:22, 1829:10 |
| Values for Old Faithful Area | 1987-08-16 |
|---|---|
| Astronomical Twilight Begin | 04:34 |
| Nautical Twilight Begin | 05:17 |
| Civil Twilight Begin | 05:55 |
| Sunrise | 06:27 |
| Sunset | 20:28 |
| Civil Twilight End | 20:59 |
| Nautical Twilight End | 21:38 |
| Astronomical Twilight End | 22:20 |
| Moon Illumination | 51.02% |