| Geyser | 1974-06-19 |
|---|---|
| Bear Den | 0840 A |
| Constant | 0845, 1940, 2055 |
| Ebony | 0000 A |
| Echinus | 0933 A |
| Ledge | 1143 |
| Little Whirligig | 1015, 1140, 1143, 1950 A, 2010 A, 2103, 2106 |
| Whirligig | 0930, 1105, 1423, 1645, 2033 |
| Values for Old Faithful Area | 1974-06-19 |
|---|---|
| Astronomical Twilight Begin | 03:09 |
| Nautical Twilight Begin | 04:12 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:38 |
| Sunset | 21:10 |
| Civil Twilight End | 21:47 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:39 |
| Moon Illumination | 1.33% |