| Geyser | 1984-08-19 |
|---|---|
| Arsenic | 1818 ie |
| Echinus | 1140:00, 1227:46, 1311:20, 1357:15, 1441:29, 1525, 1605, 2000 A maj |
| Values for Old Faithful Area | 1984-08-19 |
|---|---|
| Astronomical Twilight Begin | 04:41 |
| Nautical Twilight Begin | 05:22 |
| Civil Twilight Begin | 06:00 |
| Sunrise | 06:31 |
| Sunset | 20:22 |
| Civil Twilight End | 20:53 |
| Nautical Twilight End | 21:31 |
| Astronomical Twilight End | 22:12 |
| Moon Illumination | 55.6% |