| Geyser | 1973-02-10 |
|---|---|
| Old Faithful | 0857 long, 1012 short, 1116 long, 1230 short, 1317 long, 1431 short, 1521 long, 1635 short |
| Values for Old Faithful Area | 1973-02-10 |
|---|---|
| Astronomical Twilight Begin | 05:51 |
| Nautical Twilight Begin | 06:25 |
| Civil Twilight Begin | 06:59 |
| Sunrise | 07:30 |
| Sunset | 17:45 |
| Civil Twilight End | 18:15 |
| Nautical Twilight End | 18:49 |
| Astronomical Twilight End | 19:23 |
| Moon Illumination | 46.62% |