| Geyser | 2023-04-05 |
|---|---|
| Event Non-Geyser Related | 1859 |
| Values for Old Faithful Area | 2023-04-05 |
|---|---|
| Astronomical Twilight Begin | 05:14 |
| Nautical Twilight Begin | 05:51 |
| Civil Twilight Begin | 06:27 |
| Sunrise | 06:56 |
| Sunset | 19:55 |
| Civil Twilight End | 20:24 |
| Nautical Twilight End | 21:00 |
| Astronomical Twilight End | 21:37 |
| Moon Illumination | 99.06% |