| Geyser | 1975-04-12 |
|---|---|
| Old Faithful | 0647 long, 0810 short, 0850 long, 1004 short, 1050 long, 1216 short, 1304 long, 1418 short, 1513 long, 1624 long, 1735 short, 1829 long, 1949 long, 2058 short, 2145 |
| Values for Old Faithful Area | 1975-04-12 |
|---|---|
| Astronomical Twilight Begin | 05:00 |
| Nautical Twilight Begin | 05:38 |
| Civil Twilight Begin | 06:14 |
| Sunrise | 06:44 |
| Sunset | 20:03 |
| Civil Twilight End | 20:33 |
| Nautical Twilight End | 21:09 |
| Astronomical Twilight End | 21:48 |
| Moon Illumination | 0.29% |