| Geyser | 1964-08-29 |
|---|---|
| Bear Den | 1910 ? |
| Ebony | 0715 maj, 1910 ? |
| Echinus | 0821, 0943, 1114, 1244, 1412, 1545, 1708 |
| Steamboat | 0900-1700 |
| Valentine | 1100 |
| Values for Old Faithful Area | 1964-08-29 |
|---|---|
| Astronomical Twilight Begin | 03:57 |
| Nautical Twilight Begin | 04:36 |
| Civil Twilight Begin | 05:12 |
| Sunrise | 05:42 |
| Sunset | 19:05 |
| Civil Twilight End | 19:35 |
| Nautical Twilight End | 20:11 |
| Astronomical Twilight End | 20:50 |
| Moon Illumination | 62.44% |