| Geyser | 1978-08-02 |
|---|---|
| Echinus | 1419, 1544 |
| Palpitator Spring | 1200 |
| Steamboat | 1200 |
| Whirligig | 1040, 1250 |
| Values for Old Faithful Area | 1978-08-02 |
|---|---|
| Astronomical Twilight Begin | 04:08 |
| Nautical Twilight Begin | 04:56 |
| Civil Twilight Begin | 05:38 |
| Sunrise | 06:11 |
| Sunset | 20:47 |
| Civil Twilight End | 21:20 |
| Nautical Twilight End | 22:02 |
| Astronomical Twilight End | 22:50 |
| Moon Illumination | 2.94% |