| Geyser | 1974-07-29 |
|---|---|
| Constant | 1115, 1705 |
| Echinus | 0800, 0919, 1045, 1208, 1332, 1455, 1624 |
| Ledge | 0910 |
| Little Whirligig | 1704 |
| Whirligig | 1117 A |
| Values for Old Faithful Area | 1974-07-29 |
|---|---|
| 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 | 22:58 |
| Moon Illumination | 79.35% |