| Geyser | 2023-04-03 |
|---|---|
| Event Non-Geyser Related | 1644 |
| Values for Old Faithful Area | 2023-04-03 |
|---|---|
| Astronomical Twilight Begin | 05:18 |
| Nautical Twilight Begin | 05:55 |
| Civil Twilight Begin | 06:30 |
| Sunrise | 07:00 |
| Sunset | 19:52 |
| Civil Twilight End | 20:22 |
| Nautical Twilight End | 20:57 |
| Astronomical Twilight End | 21:34 |
| Moon Illumination | 91.52% |