| Geyser | 1973-01-24 |
|---|---|
| Old Faithful | 0914 short, 1002 long, 1124 short, 1209 long, 1327 short, 1407 long, 1521 short, 1612 |
| Values for Old Faithful Area | 1973-01-24 |
|---|---|
| Astronomical Twilight Begin | 06:08 |
| Nautical Twilight Begin | 06:42 |
| Civil Twilight Begin | 07:18 |
| Sunrise | 07:49 |
| Sunset | 17:21 |
| Civil Twilight End | 17:52 |
| Nautical Twilight End | 18:28 |
| Astronomical Twilight End | 19:02 |
| Moon Illumination | 68.83% |