| Geyser | 1977-03-13 |
|---|---|
| Beehive | 1636 |
| Beehive's Indicator | 1624 |
| Castle | 0900 ie, 1845 ie |
| Old Faithful | 0906 long, 1014 long, 1127 long, 1236 long, 1357 short, 1507 long, 1640 long, 1750 long, 1904 long, 2011 long |
| Values for Old Faithful Area | 1977-03-13 |
|---|---|
| Astronomical Twilight Begin | 05:01 |
| Nautical Twilight Begin | 05:36 |
| Civil Twilight Begin | 06:09 |
| Sunrise | 06:38 |
| Sunset | 18:26 |
| Civil Twilight End | 18:55 |
| Nautical Twilight End | 19:29 |
| Astronomical Twilight End | 20:03 |
| Moon Illumination | 40.89% |