| Geyser | 1973-03-01 |
|---|---|
| Castle | 1100 |
| Old Faithful | 0831 short, 0933 long, 1055 long, 1205 long, 1323 short, 1404 long, 1516 short, 1603 long |
| Values for Old Faithful Area | 1973-03-01 |
|---|---|
| Astronomical Twilight Begin | 05:23 |
| Nautical Twilight Begin | 05:57 |
| Civil Twilight Begin | 06:31 |
| Sunrise | 07:00 |
| Sunset | 18:11 |
| Civil Twilight End | 18:40 |
| Nautical Twilight End | 19:13 |
| Astronomical Twilight End | 19:47 |
| Moon Illumination | 14.3% |