| Geyser | 1967-07-09 |
|---|---|
| Arsenic | 1050 ie |
| Blue | 1630 ie |
| Constant | 1800 |
| Echinus | 0851, 0947, 1422, 1511, 1600, 1649 |
| Emerald Spring | 1200 |
| Harding | 0000 A |
| Valentine | 1200 |
| Values for Old Faithful Area | 1967-07-09 |
|---|---|
| Astronomical Twilight Begin | 03:25 |
| Nautical Twilight Begin | 04:24 |
| Civil Twilight Begin | 05:11 |
| Sunrise | 05:47 |
| Sunset | 21:09 |
| Civil Twilight End | 21:45 |
| Nautical Twilight End | 22:32 |
| Astronomical Twilight End | 23:31 |
| Moon Illumination | 2.83% |