| Geyser | 1969-07-29 |
|---|---|
| Bear Den | 1405 A, 1704 |
| Ebony | 1000 |
| Echinus | 0830, 1036, 1130, 1220, 1300, 1345, 1445, 1525 |
| Values for Old Faithful Area | 1969-07-29 |
|---|---|
| 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 | 22:57 |
| Moon Illumination | 99.98% |