| Geyser | 1965-08-20 |
|---|---|
| Blue | 1015 ie |
| Ebony | 0920 |
| Echinus | 0846, 0946, 1044, 1143, 1243, 1341, 1439, 1538, 1635 |
| Ledge | 1028 |
| Little Whirligig | 1200 ie, 1500 ie |
| Steamboat | 0820 |
| Values for Old Faithful Area | 1965-08-20 |
|---|---|
| Astronomical Twilight Begin | 04:42 |
| Nautical Twilight Begin | 05:23 |
| Civil Twilight Begin | 06:01 |
| Sunrise | 06:32 |
| Sunset | 20:21 |
| Civil Twilight End | 20:52 |
| Nautical Twilight End | 21:29 |
| Astronomical Twilight End | 22:11 |
| Moon Illumination | 49.07% |