| Geyser | 1983-08-24 |
|---|---|
| Blue Mud Steam Vent | 1200 |
| Echinus | 0907, 0951, 1109, 1151 |
| Palpitator Spring | 0845 |
| Veteran | 0850 |
| Vixen | 1200 |
| Values for Old Faithful Area | 1983-08-24 |
|---|---|
| Astronomical Twilight Begin | 04:48 |
| Nautical Twilight Begin | 05:28 |
| Civil Twilight Begin | 06:05 |
| Sunrise | 06:36 |
| Sunset | 20:15 |
| Civil Twilight End | 20:45 |
| Nautical Twilight End | 21:22 |
| Astronomical Twilight End | 22:02 |
| Moon Illumination | 99.64% |