| Geyser | 1978-03-29 |
|---|---|
| Cistern Spring | 1400, 1600 |
| Echinus | 1428, 1533:02, 1652:50 |
| Steamboat | 1400 |
| Values for Old Faithful Area | 1978-03-29 |
|---|---|
| Astronomical Twilight Begin | 04:29 |
| Nautical Twilight Begin | 05:05 |
| Civil Twilight Begin | 05:40 |
| Sunrise | 06:09 |
| Sunset | 18:46 |
| Civil Twilight End | 19:15 |
| Nautical Twilight End | 19:50 |
| Astronomical Twilight End | 20:26 |
| Moon Illumination | 75.61% |