| Geyser | 1978-09-12 |
|---|---|
| Constant | 1600 |
| Echinus | 0918 |
| Morning | 0841 |
| Palpitator Spring | 1200 |
| Values for Old Faithful Area | 1978-09-12 |
|---|---|
| Astronomical Twilight Begin | 05:18 |
| Nautical Twilight Begin | 05:54 |
| Civil Twilight Begin | 06:29 |
| Sunrise | 06:58 |
| Sunset | 19:40 |
| Civil Twilight End | 20:09 |
| Nautical Twilight End | 20:44 |
| Astronomical Twilight End | 21:20 |
| Moon Illumination | 73.39% |