| Geyser | 1985-08-20 |
|---|---|
| Arsenic | 1700 |
| Basin | 1800 |
| Blue | 1345 ie |
| Constant | 0931, 1100, 1221, 1401, 1739 |
| Echinus | 1515 A maj |
| Ledge | 1628-1848 |
| Little Whirligig | 1800 |
| Splutter Pot | 1029, 1034, 1036, 1038, 1050, 1057, 1103, 1110, 1230, 1236, 1241, 1246, 1251, 1257, 1302, 1304, 1313, 1821, 1824 |
| Whirligig | 0810 A, 1034, 1302, 1526, 1821 |
| Values for Old Faithful Area | 1985-08-20 |
|---|---|
| Astronomical Twilight Begin | 04:42 |
| Nautical Twilight Begin | 05:23 |
| Civil Twilight Begin | 06:01 |
| Sunrise | 06:32 |
| Sunset | 20:20 |
| Civil Twilight End | 20:51 |
| Nautical Twilight End | 21:29 |
| Astronomical Twilight End | 22:10 |
| Moon Illumination | 18.52% |