| Geyser | 1974-06-29 |
|---|---|
| Constant | 1316, 1420 |
| Echinus | 1022, 1145, 1434, 1555, 1920 |
| Ledge | 0200 A, 1513 |
| Little Whirligig | 1349, 1600 A |
| Valentine | 1318 |
| Veteran | 1200 |
| Whirligig | 1309, 1446, 1637 |
| Values for Old Faithful Area | 1974-06-29 |
|---|---|
| Astronomical Twilight Begin | 03:14 |
| Nautical Twilight Begin | 04:16 |
| Civil Twilight Begin | 05:04 |
| Sunrise | 05:41 |
| Sunset | 21:12 |
| Civil Twilight End | 21:48 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:39 |
| Moon Illumination | 74.93% |