| Geyser | 1986-07-29 |
|---|---|
| Congress Pool | 1200 |
| Echinus | 0920, 1025, 1131, 1230 A, 1333, 1433, 1535 |
| Porkchop | 1200 |
| Values for Old Faithful Area | 1986-07-29 |
|---|---|
| Astronomical Twilight Begin | 04:01 |
| Nautical Twilight Begin | 04:50 |
| Civil Twilight Begin | 05:33 |
| Sunrise | 06:06 |
| Sunset | 20:52 |
| Civil Twilight End | 21:26 |
| Nautical Twilight End | 22:08 |
| Astronomical Twilight End | 22:58 |
| Moon Illumination | 44.26% |