| Geyser | 1971-05-19 |
|---|---|
| Beehive | 1506 |
| Lion | 1135, 1525 |
| Old Faithful | 0807 short, 0918 long, 1025 short, 1113 long, 1226 short, 1344 short, 1430 short, 1542 short, 1648 short |
| Values for Old Faithful Area | 1971-05-19 |
|---|---|
| Astronomical Twilight Begin | 03:42 |
| Nautical Twilight Begin | 04:33 |
| Civil Twilight Begin | 05:17 |
| Sunrise | 05:51 |
| Sunset | 20:47 |
| Civil Twilight End | 21:21 |
| Nautical Twilight End | 22:05 |
| Astronomical Twilight End | 22:57 |
| Moon Illumination | 34.13% |