| Geyser | 1949-09-03 |
|---|---|
| Echinus | 1015 |
| Values for Old Faithful Area | 1949-09-03 |
|---|---|
| Astronomical Twilight Begin | 04:04 |
| Nautical Twilight Begin | 04:42 |
| Civil Twilight Begin | 05:18 |
| Sunrise | 05:48 |
| Sunset | 18:56 |
| Civil Twilight End | 19:26 |
| Nautical Twilight End | 20:02 |
| Astronomical Twilight End | 20:40 |
| Moon Illumination | 83.95% |