| Geyser | 1982-06-30 |
|---|---|
| Crater Spring | 1200 |
| Echinus | 1200, 1620 |
| Morning | 0100 |
| Porkchop | 1700 |
| Steamboat | 1200 |
| Veteran | 1700 ie |
| Values for Old Faithful Area | 1982-06-30 |
|---|---|
| Astronomical Twilight Begin | 03:15 |
| Nautical Twilight Begin | 04:17 |
| Civil Twilight Begin | 05:05 |
| Sunrise | 05:41 |
| Sunset | 21:11 |
| Civil Twilight End | 21:48 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:38 |
| Moon Illumination | 69.76% |