| Geyser | 1933-08-29 |
|---|---|
| Ebony | 1210, 1610 |
| Valentine | 1445 |
| Whirligig | 0730, 0855, 1025, 1155, 1325, 1445, 1615 |
| Values for Old Faithful Area | 1933-08-29 |
|---|---|
| Astronomical Twilight Begin | 03:56 |
| Nautical Twilight Begin | 04:35 |
| Civil Twilight Begin | 05:12 |
| Sunrise | 05:42 |
| Sunset | 19:06 |
| Civil Twilight End | 19:36 |
| Nautical Twilight End | 20:12 |
| Astronomical Twilight End | 20:51 |
| Moon Illumination | 59.85% |