| Geyser | 1954-09-30 |
|---|---|
| Echinus | 1200 |
| Values for Old Faithful Area | 1954-09-30 |
|---|---|
| Astronomical Twilight Begin | 04:42 |
| Nautical Twilight Begin | 05:17 |
| Civil Twilight Begin | 05:50 |
| Sunrise | 06:19 |
| Sunset | 18:07 |
| Civil Twilight End | 18:35 |
| Nautical Twilight End | 19:09 |
| Astronomical Twilight End | 19:43 |
| Moon Illumination | 9.49% |