| Geyser | 1964-05-08 |
|---|---|
| Steamboat | 1200 |
| Values for Old Faithful Area | 1964-05-08 |
|---|---|
| Astronomical Twilight Begin | 03:02 |
| Nautical Twilight Begin | 03:49 |
| Civil Twilight Begin | 04:30 |
| Sunrise | 05:03 |
| Sunset | 19:35 |
| Civil Twilight End | 20:08 |
| Nautical Twilight End | 20:50 |
| Astronomical Twilight End | 21:36 |
| Moon Illumination | 17.31% |