| Geyser | 1964-06-28 |
|---|---|
| Echinus | 0413, 0842, 1010, 1140, 1431, 1605 |
| Steamboat | 0215 |
| Valentine | 0245, 1445 |
| Values for Old Faithful Area | 1964-06-28 |
|---|---|
| Astronomical Twilight Begin | 02:13 |
| Nautical Twilight Begin | 03:16 |
| Civil Twilight Begin | 04:04 |
| Sunrise | 04:41 |
| Sunset | 20:12 |
| Civil Twilight End | 20:48 |
| Nautical Twilight End | 21:37 |
| Astronomical Twilight End | 22:39 |
| Moon Illumination | 90.44% |