| Geyser | 1990-02-23 |
|---|---|
| Incline | 1200 |
| Values for Old Faithful Area | 1990-02-23 |
|---|---|
| Astronomical Twilight Begin | 05:33 |
| Nautical Twilight Begin | 06:07 |
| Civil Twilight Begin | 06:41 |
| Sunrise | 07:10 |
| Sunset | 18:02 |
| Civil Twilight End | 18:32 |
| Nautical Twilight End | 19:06 |
| Astronomical Twilight End | 19:39 |
| Moon Illumination | 5.34% |