| Geyser | 1965-09-17 |
|---|---|
| Echinus | 0910, 1015, 1119, 1221, 1422, 1522, 1618 |
| Ledge | 0530 A |
| Little Whirligig | 1443 |
| Steamboat | 0800-1430 |
| Values for Old Faithful Area | 1965-09-17 |
|---|---|
| Astronomical Twilight Begin | 05:25 |
| Nautical Twilight Begin | 06:01 |
| Civil Twilight Begin | 06:35 |
| Sunrise | 07:04 |
| Sunset | 19:30 |
| Civil Twilight End | 19:59 |
| Nautical Twilight End | 20:34 |
| Astronomical Twilight End | 21:09 |
| Moon Illumination | 63.62% |