| Geyser | 1973-02-22 |
|---|---|
| Beehive | 1027, 1430 |
| Castle | 1430 ie |
| Grand | 1210 ie |
| Old Faithful | 0824, 0932 short, 1019 long, 1128 short, 1216 long, 1333 short, 1418 long, 1534 short, 1628 |
| Splendid | 1500 |
| Values for Old Faithful Area | 1973-02-22 |
|---|---|
| Astronomical Twilight Begin | 05:35 |
| Nautical Twilight Begin | 06:08 |
| Civil Twilight Begin | 06:42 |
| Sunrise | 07:11 |
| Sunset | 18:01 |
| Civil Twilight End | 18:31 |
| Nautical Twilight End | 19:04 |
| Astronomical Twilight End | 19:38 |
| Moon Illumination | 75.96% |