| Geyser | 1969-07-09 |
|---|---|
| Bear Den | 0930 |
| Ebony | 0930 |
| Echinus | 0845, 1040, 1200, 1320 |
| Fan-Norris | 1200 |
| Ledge | 0300 A |
| Little Whirligig | 1200 |
| Values for Old Faithful Area | 1969-07-09 |
|---|---|
| Astronomical Twilight Begin | 03:26 |
| Nautical Twilight Begin | 04:25 |
| Civil Twilight Begin | 05:11 |
| Sunrise | 05:47 |
| Sunset | 21:09 |
| Civil Twilight End | 21:44 |
| Nautical Twilight End | 22:31 |
| Astronomical Twilight End | 23:30 |
| Moon Illumination | 24.11% |