| Geyser | 1969-07-13 |
|---|---|
| Ebony | 1707 ie |
| Echinus | 0807, 0920, 1000, 1220, 1320, 1428, 1505, 1540, 1630 |
| Fan-Norris | 1000 ie, 1720 ie |
| Values for Old Faithful Area | 1969-07-13 |
|---|---|
| Astronomical Twilight Begin | 03:32 |
| Nautical Twilight Begin | 04:29 |
| Civil Twilight Begin | 05:15 |
| Sunrise | 05:51 |
| Sunset | 21:06 |
| Civil Twilight End | 21:42 |
| Nautical Twilight End | 22:28 |
| Astronomical Twilight End | 23:25 |
| Moon Illumination | 1.65% |