| Geyser | 1983-08-14 |
|---|---|
| Arsenic | 1155 |
| Blue | 1030 |
| Fireball | 1155 |
| Incline | 1435 |
| Steamvalve Spring | 1145, 1930 ie |
| Whirligig | 1415 |
| Values for Old Faithful Area | 1983-08-14 |
|---|---|
| Astronomical Twilight Begin | 04:30 |
| Nautical Twilight Begin | 05:14 |
| Civil Twilight Begin | 05:53 |
| Sunrise | 06:24 |
| Sunset | 20:31 |
| Civil Twilight End | 21:02 |
| Nautical Twilight End | 21:41 |
| Astronomical Twilight End | 22:25 |
| Moon Illumination | 36.44% |