| Geyser | 1982-07-20 |
|---|---|
| Constant | 1113 |
| Ebony | 1200 |
| Echinus | 1158:53, 1232:29, 1304:02, 1336:17 |
| Whirligig | 1120:24 |
| Values for Old Faithful Area | 1982-07-20 |
|---|---|
| Astronomical Twilight Begin | 03:44 |
| Nautical Twilight Begin | 04:38 |
| Civil Twilight Begin | 05:22 |
| Sunrise | 05:57 |
| Sunset | 21:01 |
| Civil Twilight End | 21:36 |
| Nautical Twilight End | 22:21 |
| Astronomical Twilight End | 23:14 |
| Moon Illumination | 0.44% |