| Geyser | 1975-02-08 |
|---|---|
| Grand | 1250 ie |
| Old Faithful | 0936 short, 1037 long, 1157 short, 1250 long, 1400 short, 1454 long, 1608 short |
| Round | 1018 |
| Values for Old Faithful Area | 1975-02-08 |
|---|---|
| Astronomical Twilight Begin | 05:54 |
| Nautical Twilight Begin | 06:28 |
| Civil Twilight Begin | 07:03 |
| Sunrise | 07:33 |
| Sunset | 17:41 |
| Civil Twilight End | 18:11 |
| Nautical Twilight End | 18:46 |
| Astronomical Twilight End | 19:20 |
| Moon Illumination | 7.61% |