| Geyser | 1993-04-11 |
|---|---|
| Beehive | 1938:15 |
| Beehive's Indicator | 1927 |
| Great Fountain | 1741 ie |
| Lion | 1857 ie |
| Riverside | 1900 ie |
| Values for Old Faithful Area | 1993-04-11 |
|---|---|
| Astronomical Twilight Begin | 05:01 |
| Nautical Twilight Begin | 05:39 |
| Civil Twilight Begin | 06:15 |
| Sunrise | 06:45 |
| Sunset | 20:03 |
| Civil Twilight End | 20:32 |
| Nautical Twilight End | 21:09 |
| Astronomical Twilight End | 21:47 |
| Moon Illumination | 75.32% |