| Geyser | 1982-07-09 |
|---|---|
| Blue | 1100 |
| Graceful | 1050, 1135, 1214, 1324, 1432, 1515, 1614, 1818 |
| Morning | 1020 |
| Sunday | 1045 |
| Whirligig | 1205, 1335, 1430, 1535, 1627, 1818 |
| Values for Old Faithful Area | 1982-07-09 |
|---|---|
| Astronomical Twilight Begin | 03:26 |
| Nautical Twilight Begin | 04:24 |
| Civil Twilight Begin | 05:11 |
| Sunrise | 05:47 |
| Sunset | 21:09 |
| Civil Twilight End | 21:45 |
| Nautical Twilight End | 22:32 |
| Astronomical Twilight End | 23:30 |
| Moon Illumination | 92.2% |