| Geyser | 1964-11-18 |
|---|---|
| Steamboat | 0000 |
| Values for Old Faithful Area | 1964-11-18 |
|---|---|
| Astronomical Twilight Begin | 05:42 |
| Nautical Twilight Begin | 06:16 |
| Civil Twilight Begin | 06:52 |
| Sunrise | 07:24 |
| Sunset | 16:53 |
| Civil Twilight End | 17:24 |
| Nautical Twilight End | 18:00 |
| Astronomical Twilight End | 18:34 |
| Moon Illumination | 97.3% |