| Geyser | 1975-01-15 |
|---|---|
| Beehive | 1847 ie |
| Castle | 1037 ie |
| Depression | 1108 ie |
| Grand | 1620 |
| Lone Star | 1120, 1138 |
| Old Faithful | 0929 long, 1033 long, 1142 short, 1237 long, 1355 short, 1450 long, 1559 long, 1707 long |
| Values for Old Faithful Area | 1975-01-15 |
|---|---|
| Astronomical Twilight Begin | 06:13 |
| Nautical Twilight Begin | 06:48 |
| Civil Twilight Begin | 07:24 |
| Sunrise | 07:56 |
| Sunset | 17:09 |
| Civil Twilight End | 17:41 |
| Nautical Twilight End | 18:17 |
| Astronomical Twilight End | 18:52 |
| Moon Illumination | 7.37% |