| Geyser | 1988-08-03 |
|---|---|
| Echinus | 0936, 1048, 1146, 1345, 1445, 1545 min, 1555, 1655 |
| Splutter Pot | 1500 A |
| Values for Old Faithful Area | 1988-08-03 |
|---|---|
| Astronomical Twilight Begin | 04:11 |
| Nautical Twilight Begin | 04:58 |
| Civil Twilight Begin | 05:40 |
| Sunrise | 06:13 |
| Sunset | 20:45 |
| Civil Twilight End | 21:18 |
| Nautical Twilight End | 21:59 |
| Astronomical Twilight End | 22:46 |
| Moon Illumination | 66.62% |