| Geyser | 1964-04-28 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1964-04-28 |
|---|---|
| Astronomical Twilight Begin | 03:23 |
| Nautical Twilight Begin | 04:06 |
| Civil Twilight Begin | 04:45 |
| Sunrise | 05:17 |
| Sunset | 19:23 |
| Civil Twilight End | 19:55 |
| Nautical Twilight End | 20:34 |
| Astronomical Twilight End | 21:17 |
| Moon Illumination | 97.8% |