| Geyser | 1973-03-06 |
|---|---|
| Beehive | 1001 |
| Castle | 1440 ie |
| Grand | 0300 |
| Old Faithful | 0915 short, 1003 long, 1119 short, 1211 long, 1329 short, 1414 long, 1531 short, 1617 long |
| Riverside | 1600 |
| Values for Old Faithful Area | 1973-03-06 |
|---|---|
| Astronomical Twilight Begin | 05:14 |
| Nautical Twilight Begin | 05:48 |
| Civil Twilight Begin | 06:22 |
| Sunrise | 06:51 |
| Sunset | 18:17 |
| Civil Twilight End | 18:46 |
| Nautical Twilight End | 19:20 |
| Astronomical Twilight End | 19:54 |
| Moon Illumination | 2.03% |