| Geyser | 1977-03-05 |
|---|---|
| Beehive | 1024 |
| Castle | 0845 ie, 1715 ie |
| Grand | 1030 ie |
| Old Faithful | 0900, 1016, 1131 long, 1244 long, 1356 long, 1508 short, 1601 long, 1721 long |
| Values for Old Faithful Area | 1977-03-05 |
|---|---|
| Astronomical Twilight Begin | 05:16 |
| Nautical Twilight Begin | 05:50 |
| Civil Twilight Begin | 06:24 |
| Sunrise | 06:53 |
| Sunset | 18:16 |
| Civil Twilight End | 18:45 |
| Nautical Twilight End | 19:19 |
| Astronomical Twilight End | 19:52 |
| Moon Illumination | 99.75% |