| Geyser | 1979-06-11 |
|---|---|
| Bear Den | 0837 |
| Echinus | 0859 ie, 1020 ie, 1545 maj |
| Little Whirligig | 0933 ie, 1100 ie |
| Porkchop | 1010 ie |
| Whirligig | 0820 ie, 1145 ie, 1535, 1633 |
| Values for Old Faithful Area | 1979-06-11 |
|---|---|
| Astronomical Twilight Begin | 03:11 |
| Nautical Twilight Begin | 04:13 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:38 |
| Sunset | 21:07 |
| Civil Twilight End | 21:43 |
| Nautical Twilight End | 22:32 |
| Astronomical Twilight End | 23:33 |
| Moon Illumination | 99.25% |