| Geyser | 1978-07-04 |
|---|---|
| Echinus | 1020, 1302, 1420, 1535 |
| Little Whirligig | 0845 |
| Palpitator Spring | 1200 |
| Veteran | 1015 |
| Whirligig | 0835 |
| Values for Old Faithful Area | 1978-07-04 |
|---|---|
| Astronomical Twilight Begin | 03:19 |
| Nautical Twilight Begin | 04:20 |
| Civil Twilight Begin | 05:07 |
| Sunrise | 05:44 |
| Sunset | 21:11 |
| Civil Twilight End | 21:47 |
| Nautical Twilight End | 22:35 |
| Astronomical Twilight End | 23:35 |
| Moon Illumination | 1.23% |