| Geyser | 1964-08-22 |
|---|---|
| Bear Den | 0800 |
| Blue | 0855 ie |
| Ebony | 0800 min |
| Echinus | 0900, 1004, 1109, 1218, 1331, 1441, 1546, 1654 |
| Steamboat | 1345 |
| Sunday | 1800 |
| Valentine | 0000 A, 1430 |
| Values for Old Faithful Area | 1964-08-22 |
|---|---|
| Astronomical Twilight Begin | 03:46 |
| Nautical Twilight Begin | 04:26 |
| Civil Twilight Begin | 05:03 |
| Sunrise | 05:34 |
| Sunset | 19:17 |
| Civil Twilight End | 19:48 |
| Nautical Twilight End | 20:25 |
| Astronomical Twilight End | 21:06 |
| Moon Illumination | 99.09% |