| Geyser | 1975-04-06 |
|---|---|
| Old Faithful | 0701 short, 0751 long, 1002 long, 1115 long, 1224 long, 1337 short, 1422 long, 1533 long, 1649 long, 1803 short, 1854 long, 2017 short, 2111 long, 2235 short |
| Values for Old Faithful Area | 1975-04-06 |
|---|---|
| Astronomical Twilight Begin | 05:13 |
| Nautical Twilight Begin | 05:50 |
| Civil Twilight Begin | 06:25 |
| Sunrise | 06:55 |
| Sunset | 19:56 |
| Civil Twilight End | 20:25 |
| Nautical Twilight End | 21:01 |
| Astronomical Twilight End | 21:38 |
| Moon Illumination | 24.96% |