| Geyser | 1979-08-26 |
|---|---|
| Bear Den | 1128 |
| Echinus | 1348 |
| Splutter Pot | 1151 |
| Whirligig | 1151 |
| Values for Old Faithful Area | 1979-08-26 |
|---|---|
| Astronomical Twilight Begin | 04:51 |
| Nautical Twilight Begin | 05:31 |
| Civil Twilight Begin | 06:08 |
| Sunrise | 06:38 |
| Sunset | 20:11 |
| Civil Twilight End | 20:42 |
| Nautical Twilight End | 21:19 |
| Astronomical Twilight End | 21:58 |
| Moon Illumination | 10.9% |