| Geyser | 1967-08-09 |
|---|---|
| Bear Den | 1050 |
| Cistern Spring | 0800 |
| Echinus | 0802 A, 0858, 0945, 1038, 1131, 1223, 1454, 1541, 1628 |
| Values for Old Faithful Area | 1967-08-09 |
|---|---|
| Astronomical Twilight Begin | 04:21 |
| Nautical Twilight Begin | 05:06 |
| Civil Twilight Begin | 05:46 |
| Sunrise | 06:18 |
| Sunset | 20:38 |
| Civil Twilight End | 21:11 |
| Nautical Twilight End | 21:51 |
| Astronomical Twilight End | 22:36 |
| Moon Illumination | 12.76% |