| Geyser | 1988-03-25 |
|---|---|
| Echinus | 1156, 1238 |
| Values for Old Faithful Area | 1988-03-25 |
|---|---|
| Astronomical Twilight Begin | 04:37 |
| Nautical Twilight Begin | 05:12 |
| Civil Twilight Begin | 05:46 |
| Sunrise | 06:15 |
| Sunset | 18:42 |
| Civil Twilight End | 19:11 |
| Nautical Twilight End | 19:45 |
| Astronomical Twilight End | 20:21 |
| Moon Illumination | 50.83% |