| Geyser | 1969-06-18 |
|---|---|
| Arsenic | 1120 ie |
| Blue | 1200 |
| Ebony | 0955 |
| Echinus | 0946, 1022, 1158, 1245, 1449, 1546, 1632 |
| Ledge | 1900 |
| Little Whirligig | 1120 ie |
| Values for Old Faithful Area | 1969-06-18 |
|---|---|
| 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 | 9.48% |