| Geyser | 1981-07-14 |
|---|---|
| Echinus | 1058, 1247, 1450, 1543, 1639 |
| Sunday | 1945 |
| Veteran | 0835 |
| Whirligig | 0127, 0824, 2302, 2347 |
| Values for Old Faithful Area | 1981-07-14 |
|---|---|
| Astronomical Twilight Begin | 03:34 |
| Nautical Twilight Begin | 04:30 |
| Civil Twilight Begin | 05:16 |
| Sunrise | 05:52 |
| Sunset | 21:06 |
| Civil Twilight End | 21:41 |
| Nautical Twilight End | 22:27 |
| Astronomical Twilight End | 23:23 |
| Moon Illumination | 91.59% |