| Geyser | 1987-03-14 |
|---|---|
| Giantess | 2030 ie |
| Values for Old Faithful Area | 1987-03-14 |
|---|---|
| Astronomical Twilight Begin | 05:00 |
| Nautical Twilight Begin | 05:35 |
| Civil Twilight Begin | 06:08 |
| Sunrise | 06:37 |
| Sunset | 18:27 |
| Civil Twilight End | 18:56 |
| Nautical Twilight End | 19:30 |
| Astronomical Twilight End | 20:04 |
| Moon Illumination | 98.3% |