| Geyser | 1983-08-17 |
|---|---|
| Echinus | 0846, 0929, 1133 ie, 1220 ie |
| Giantess | 1256 |
| Incline | 1409:51, 1520:06, 1550:10, 1618:01, 1649:34 maj, 1719:17, 1730 |
| Spectacle | 1001 maj, 1108 maj |
| Values for Old Faithful Area | 1983-08-17 |
|---|---|
| Astronomical Twilight Begin | 04:36 |
| Nautical Twilight Begin | 05:18 |
| Civil Twilight Begin | 05:56 |
| Sunrise | 06:28 |
| Sunset | 20:26 |
| Civil Twilight End | 20:57 |
| Nautical Twilight End | 21:36 |
| Astronomical Twilight End | 22:18 |
| Moon Illumination | 66.99% |