| Geyser | 1976-10-25 |
|---|---|
| Grand | 0130 |
| Lion | 0938 ie |
| North Goggle | 0000-2359 |
| Old Faithful | 0831 short, 0928 long, 1046 long, 1200 short, 1259 long, 1424 short, 1518 long, 1631 short, 1742 |
| Round | 1106 |
| Values for Old Faithful Area | 1976-10-25 |
|---|---|
| Astronomical Twilight Begin | 06:14 |
| Nautical Twilight Begin | 06:48 |
| Civil Twilight Begin | 07:22 |
| Sunrise | 07:51 |
| Sunset | 18:22 |
| Civil Twilight End | 18:52 |
| Nautical Twilight End | 19:26 |
| Astronomical Twilight End | 20:00 |
| Moon Illumination | 6.22% |