| Geyser | 1966-06-18 |
|---|---|
| Ebony | 1545 |
| Echinus | 0824, 0925, 1028, 1133, 1239, 1347, 1453, 1556 |
| Ledge | 1310 A |
| Little Whirligig | 1515 |
| Steamboat | 0800-1440 |
| Values for Old Faithful Area | 1966-06-18 |
|---|---|
| Astronomical Twilight Begin | 03:09 |
| Nautical Twilight Begin | 04:12 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:38 |
| Sunset | 21:10 |
| Civil Twilight End | 21:47 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:39 |
| Moon Illumination | 0.44% |