| Geyser | 1965-09-19 |
|---|---|
| Echinus | 0859, 0954, 1054, 1150, 1444, 1548, 1643 |
| Ledge | 1131 |
| Steamboat | 0800-1800 |
| Values for Old Faithful Area | 1965-09-19 |
|---|---|
| Astronomical Twilight Begin | 05:28 |
| Nautical Twilight Begin | 06:03 |
| Civil Twilight Begin | 06:38 |
| Sunrise | 07:07 |
| Sunset | 19:27 |
| Civil Twilight End | 19:56 |
| Nautical Twilight End | 20:30 |
| Astronomical Twilight End | 21:05 |
| Moon Illumination | 41.5% |