| Geyser | 1972-10-04 |
|---|---|
| Echinus | 0942 |
| Old Faithful | 0822, 0928, 1036, 1140, 1229, 1347, 1450, 1603, 1652 |
| Veteran | 1800 |
| Values for Old Faithful Area | 1972-10-04 |
|---|---|
| Astronomical Twilight Begin | 05:48 |
| Nautical Twilight Begin | 06:22 |
| Civil Twilight Begin | 06:56 |
| Sunrise | 07:25 |
| Sunset | 18:58 |
| Civil Twilight End | 19:27 |
| Nautical Twilight End | 20:01 |
| Astronomical Twilight End | 20:35 |
| Moon Illumination | 9.3% |