| Geyser | 1978-08-08 |
|---|---|
| Dark Cavern | 1045, 1100 |
| Echinus | 1048 |
| Palpitator Spring | 1200 |
| Splutter Pot | 1006 |
| Whirligig | 0840, 1000, 1040 |
| Values for Old Faithful Area | 1978-08-08 |
|---|---|
| Astronomical Twilight Begin | 04:20 |
| Nautical Twilight Begin | 05:05 |
| Civil Twilight Begin | 05:45 |
| Sunrise | 06:18 |
| Sunset | 20:39 |
| Civil Twilight End | 21:12 |
| Nautical Twilight End | 21:52 |
| Astronomical Twilight End | 22:37 |
| Moon Illumination | 15.96% |