| Geyser | 1949-07-30 |
|---|---|
| Echinus | 1100 |
| Ledge | 0600 A |
| Values for Old Faithful Area | 1949-07-30 |
|---|---|
| Astronomical Twilight Begin | 03:03 |
| Nautical Twilight Begin | 03:52 |
| Civil Twilight Begin | 04:34 |
| Sunrise | 05:07 |
| Sunset | 19:51 |
| Civil Twilight End | 20:24 |
| Nautical Twilight End | 21:07 |
| Astronomical Twilight End | 21:56 |
| Moon Illumination | 25.2% |