| Geyser | 1964-08-04 |
|---|---|
| Bear Den | 1010 |
| Ebony | 1700 maj |
| Echinus | 0803, 0930, 1101, 1233, 1407, 1536, 1710 |
| Steamboat | 0730 |
| Valentine | 0913 |
| Values for Old Faithful Area | 1964-08-04 |
|---|---|
| Astronomical Twilight Begin | 03:13 |
| Nautical Twilight Begin | 04:00 |
| Civil Twilight Begin | 04:41 |
| Sunrise | 05:13 |
| Sunset | 19:44 |
| Civil Twilight End | 20:17 |
| Nautical Twilight End | 20:58 |
| Astronomical Twilight End | 21:45 |
| Moon Illumination | 16.76% |