| Geyser | 1965-09-04 |
|---|---|
| Echinus | 0920, 1044, 1205, 1328, 1451, 1614 |
| Ledge | 1515 A |
| Little Whirligig | 1800 |
| Steamboat | 0800-1600 |
| Values for Old Faithful Area | 1965-09-04 |
|---|---|
| Astronomical Twilight Begin | 05:06 |
| Nautical Twilight Begin | 05:44 |
| Civil Twilight Begin | 06:19 |
| Sunrise | 06:49 |
| Sunset | 19:54 |
| Civil Twilight End | 20:24 |
| Nautical Twilight End | 21:00 |
| Astronomical Twilight End | 21:37 |
| Moon Illumination | 63.81% |