| Geyser | 1966-07-08 |
|---|---|
| Blue | 1655 A |
| Echinus | 0857, 0956, 1055, 1155, 1251, 1353, 1453, 1549, 1653 |
| Veteran | 1145 |
| Values for Old Faithful Area | 1966-07-08 |
|---|---|
| Astronomical Twilight Begin | 03:24 |
| Nautical Twilight Begin | 04:23 |
| Civil Twilight Begin | 05:10 |
| Sunrise | 05:46 |
| Sunset | 21:09 |
| Civil Twilight End | 21:45 |
| Nautical Twilight End | 22:32 |
| Astronomical Twilight End | 23:32 |
| Moon Illumination | 74.32% |