| Geyser | 1963-10-23 |
|---|---|
| Steamboat | 0000 |
| Values for Old Faithful Area | 1963-10-23 |
|---|---|
| Astronomical Twilight Begin | 05:11 |
| Nautical Twilight Begin | 05:44 |
| Civil Twilight Begin | 06:18 |
| Sunrise | 06:48 |
| Sunset | 17:27 |
| Civil Twilight End | 17:56 |
| Nautical Twilight End | 18:30 |
| Astronomical Twilight End | 19:04 |
| Moon Illumination | 27.15% |