| Geyser | 1970-09-02 |
|---|---|
| Bear Den | 1052, 1330 |
| Echinus | 0903, 1030, 1200, 1242, 1456, 1540, 1624 |
| Ledge | 0850, 1800 |
| Values for Old Faithful Area | 1970-09-02 |
|---|---|
| Astronomical Twilight Begin | 05:03 |
| Nautical Twilight Begin | 05:41 |
| Civil Twilight Begin | 06:17 |
| Sunrise | 06:46 |
| Sunset | 19:58 |
| Civil Twilight End | 20:28 |
| Nautical Twilight End | 21:04 |
| Astronomical Twilight End | 21:42 |
| Moon Illumination | 1.61% |